SEA - LIS

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SEA — LIS
Dec 1 — Dec 81
Round-trip
1 adult
Economy
0 bags
From?
To?
Wed 12/1
Wed 12/8

Good to know

Low season

November

High season

June

Average price round-trip

$829

Good deal round-trip

$704

Good deal one-way

$588
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 20% increase in price.
(avg. price over the last 2 weeks)
or less
or less

When to book flights from Seattle to Lisbon

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $588 or less one-way and $704 or less round-trip.
  • The cheapest flight from Seattle to Lisbon was found 47 days before departure, on average.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is November.
  • Morning departure is around 10% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from Seattle to Lisbon

Top 5 airlines serving Seattle/Tacoma Intl to Lisbon Humberto Delgado

Scores according to KAYAK customer reviews
7.9
DeltaOverall score based on 30126 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.5Food
Airline reviews

Old plane. Zero leg room. Dour staff. Turn lighting on repeatedly on redeye - spend half the time making useless announcements. Impossible to sleep even if you were in 1st class.

Read more about Delta

Old plane. Zero leg room. Dour staff. Turn lighting on repeatedly on redeye - spend half the time making useless announcements. Impossible to sleep even if you were in 1st class.

Great customer service. Safety and cleanliness. Fly delta.

2hours delayed and didn't give notification right away 🤷‍♀️. I even lost my food to rush to go to the airport. Paid $60 for seafood plate ending just leave it almost halfway on my way to the airport find out the flight was delayed. I wish they have more accurate policy to let passengers knows for any problems about the flight as soon or as early they can

I like that I got to my destination safely.

The TSA screening is absolutely unnecessary. It is dehumanizing and has been proven to be in-effective!

Anyone that purchased a Delta 1st Class seat should have access to the Delta Sky Club. My wife and I purchased 1st Class tickets for a Delta flight from SeaTac to Washington Dulles but were denied entrance to the SeaTac Delta Sky Club because we did have an American Express card.

Really accommodating staff, and on flight amenities. I would fly with Delta again.

Pros: "The seats were very good. The crew was helpful and friendly."
Cons: "We had a connection in Detroit. The flight from Seattle to Detroit arrived about 30 minutes late, and we barely made the connection. Apparently Delta had not told the Detroit-Boston flight to wait a few minutes for us. We did make the connection, but we arrived at the gate with no seat assignment (we had been bumped the day before from our original flight because of a mechanical problem) as the plane was loading. Had we missed the flight, we would have had to spend the night in Detroit and go to Boston the next day. Delta should have told the gate agent that we were coming."
Pros: "Crew attentive, professional, appeared to be enjoying job with full plane."
Cons: "The mew food boxes in furst class taste terrible."
Pros: "Sitting in the exit row"
Cons: "Nothing"
Pros: "Great crew."
Cons: "Mask enforcement"
Pros: "Clean safe comfortable plane seats. friendly staff."
Cons: "A small credit for miles as the Wifi didn’t work."
Cons: "Having cocktails available on-board"
Cons: "The exit row that I paid up for, for leg room, didn't have extra leg room. First world problems."
Pros: "Crew was awesome!"
Cons: "The boarding did not go on time. An announcement about why would have been nice. Still made it on the flight on time."
Pros: "This was a redeye flight which are never the best. We upgraded to first class for a chance to sleep. The sanitizing of the aircraft was beyond expectations. The personal wipes were a plus so we could clean the areas around our seats to our satisfaction. The individual snack bags are a great idea to minimize handling."
Pros: "It was nice that the plane was not packed full."
Cons: "Box water instead of water bottles. The seat wasn’t very comfortable since it wouldn’t recline."
Cons: "The Seattle gate agents never said which flight they were calling and since neighboring gates were boarding at the same time it was very confusing and rather chaotic."
Pros: "Crew was very attentive. I appreciated the extra spacing between passengers."
Cons: "I would have liked to see alcohol served."
Pros: "There was an amazing variety of tv shows and movies. That is essential for long flights like ours was."
Cons: "For long haul flights, I am used to being offered a pillow/blanket, even when sitting in economy."
Cons: "There should not be a pay wall around the internet in today's day and age"
Pros: "Everything from hospitality to the ease of the flight. Captain communicated to put all at ease during this time in which this pandemic has gotten many fearful of flying. Great landing as well."
Cons: "Everything was great!"
Pros: "Crew was great, flight in general was okay"
Cons: "The plane itself and seating was filthy, some unknown substance fell on me from the vent above, there was a bunch of crumbs in the seat buckle that fell out all over my lap when I fastened it. I'm not sure the tray table was wiped down, or at least not very well. The in-flight tracker was completely incorrect, I was on a 4-hour flight and it read 14 hours and counting throughout."
Pros: "Nice crew"
Cons: "No leg room for 6’6” person."
Pros: "Average flight. Crew was polite."
Cons: "On time performance. Barely made my connecton, because of flight delay. Seems like only 1 in 5 flights are on time according to flightaware.com."
Cons: "We weren't alerted there was a chance of delays. Over two hours late."
Pros: "Everything! Thank you"
Cons: "Nothing. Thanks"
Cons: "Food really bad on both segments."
Cons: "2 seats and neither tv/entertainment centres worked....unacceptable on a 10 hr flight!"
Pros: "The entertainment was nice."
Cons: "If the screen wasn’t behind the seat. I could hear the tapping of the person behind me."
Cons: "N-S"
Cons: "Missed connecting flight because the first flight was delayed by 2.5 hours. I didn’t get the comfort seat I paid for because of this and was not given a refund for it."
Pros: "The crew was very professional, hejpful and had good attitude towards the passengers. This made the flight easy and enjoyable."
Pros: "I think they flew so fast. We could land almost on time even though we departed a hour late. Airplane was new and clean."
Cons: "Boarding was chaos. They overbooked 25? 45? Anyway, they are in panic. They tried to request ppl to take next day flight by giving away 300 gift card etc. the ppl who were told there are no seats upset and arguing at the gate. Flight was delayed for one hour. Once we are on airplane, they are still shuffling seats around, so ppl cannot move forward. Just standing there for 10mins waiting for things to settle. Flight attendants did not give us a headphone. (I have a headphone for iPhone X so I could not connect it to their entertaiment system.)"
Cons: "Over an hour delay before boarding due to supposedly bad weather. Because flight was overbooked they were offering $400 gift card to change to standby on another flight. If you didn’t make that flight (evening), you’d be confirmed on a flight the following morning with one stop in Detroit (we booked a nonstop to Chicago). Uh, no thanks. Then to top it off, we’ve landed and been told that it will be at least an hour before we can deplane due to no availability at the gate (it’s 1145 pm right now). All this plus their new policy of not allowing us to select our seats because we bought the cheapest tickets. Really Delta? You go ahead and cater to the rich and I’ll choose to fly with another airline."
Pros: "This was our first time flying Delta and it was a very pleasurable experience. Boarding was very straight forward and the seats allocated comfortable. A surprise for us was being asked if we would like to move seats from the back of the aircraft to Comfort Economy (we think it was to do with weight balance! but appreciated very much none the less). The flight attendants were very professional and helpful, as you would hope all attendants on all airlines would be. We'd gladly fly Delta again anytime."
Cons: "Partner site said it was Aeromexico. First flight was delta so different check bag policy for internal flight that cost me $80. Screw you all"
Pros: "Nothing really"
Cons: "Flight delay further to the 30 minutes additional 20 min due to crew being not there"
Pros: "Nothing, they didn’t care about you or to help, the llady was so rude and unfriendly, this situation ruin my whole trip"
Cons: "I call in advance to paid the fees for baggage, I call Aeromexico because was the main airline for the fly, but Delta at Seattle made me paid again the fees for baggage’s even by phone they said that I didn’t need to paid. BE AWARE AND CAREFUL BECAUSE THE LADIES IN THE FRONT DESK didn’t even look the paperwork that you have in hand, they only want to charge you saying that your payment thru Aeromexico didn’t help you in the 1st fly. How this can happen when Delta and Aeromexico are two subsidiary one of another ?"
Pros: "Boarding is easy as always, I like Delta's system."
Cons: "I had a seat by an exit door. I was incredibly uncomfortable the entire flight due to the cold air comin in and hitting my feet / legs. Two coats and a blanket weren't enough to remedy the issue."
Pros: "It was whatever"
Pros: "Almonds"
Cons: "Seat, did not get upgraded"
Pros: "Great service, very comfortable."
Pros: "The service on board is always GREAT! in Aeromexico"
Cons: "The flight was canceled and we were put in another flight next night. But the staff in Buenos Aires run the situation chaotically and made mistakes that infuriated many passengers. They need more training to learn how to say "I am sorry" more often and know how to avoid getting into arguments with passengers."
Pros: "Food selection and quality were fine. I also enjoyed the entertainment options. Seat area was comfortable and spacious."
Cons: "The flight attendants were uniformly rude and nasty to passengers from start to finish. As I boarded, I asked for a piece of art to be stored in the wardrobe compartment. This was treated as an inconvenience. During and after boarding, flight attendants addressed passengers rudely when encouraging them to take their seats in a timely fashion. Later, when my seat mate politely asked a FA to repeat the food options, she asked, "Excuse me?" several times and seemed very irritated to have to repeat the choices for him. Also, near the end of the flight, a pillow was on the ground and a FA asked those seated in my row to pick it up. We responded that it wasn't ours and she said something to the effect of, "Oh yeah? So how did it get there?" (Maybe because someone else dropped it and we didn't notice?) The FAs seemed irritated to serve passengers at all. Each time they passed through for beverage or meal service, I felt like I was imposing on them. I have never witnessed anything quite like it. Makes me wonder why they were all so upset and and felt it appropriate to speak and act disrespectfully toward customers. (Delta, do you have any insights?) I hope they all got a good night's rest after that haul."
Pros: "Very comfortable plane, 4 snack choices, friendly crew."
Cons: "It was all good, except that the charging stations were difficult to figure out since they were out of sight under the seats. I had to have the flight attendant plug in my charger."
Pros: "Good Snacks, crew is friendly, toilet was clean and we arrived on time"
Cons: "Nothing"
Cons: "As a Platinum AFK/KLM Skyteam member I was NOT allowed to use the Delta Lounge. On the flight the meal choice was poor and the staff were not really geared to serving regular clients. The movie choice was poor. I expected better!"
Pros: "Accident on way to airport, so I showed up to check bags 45 minutes before flight time. They said they couldn't get the bag to the plane..in 45 minutes? So, they put on the next flight... 6 hours later. Said I could fly without the bag... uh, no thanks. They would not look for alternatives without charging me more. Flight attendants were crabby, otherwise everything was fine. I flew British Airways a few months ago. Night and day. Seriously. Delta does not even approach having good service. There was no comparison to British Air--- Delta is not in the same league."
Pros: "Short flight with great views"
Cons: "I was not asked to check my bag, but there was no space for it so I had to take it back off after everyone boarded. No drink or food. Ground crew forgot to get bags at end of fliggt for those of us who checked at the gate. Had to wait quite a while."
Pros: "Lufthansa is a great airline."
Cons: "Food was so hot that it was difficult to remove the packaging to be able to eat the pasta.... Desert was ok, brownie was real hard and too sweet...."
Cons: "The least leg room in any flight I’ve taken. We had requested vegetarian and the flight from Frankfurt to Nairobi gave our meal to other passengers.they told us we had to eat the best dish or nothing. This on an 8 hour flight."
Pros: "Salmon dinner was the best dish Lufthansa ever served"
Cons: "Flight attendants disappeared after serving dinner. They didn't come around once between dinner and breakfast. This was the worst LH crew ever."
Cons: "Check-in Seattle was ill organized and folks cut and groused"
Pros: "The crew."
Cons: "The airplane arrived over 45 minutes late."
Pros: "Crew were great. Very friendly & helpful"
Cons: "Lufthansa really need to serve something better than high school cafeteria grade food"
Pros: "Crew were friendly, boarded promptly"
Cons: "Food could have been better."
Cons: "Make a flight for just for families or an area on the plane so we can all get some rest"
Pros: "Tv screens, free beverages, frequent service"
Cons: "The single most cramped and uncomfortable flying experience of my life. The chair in front of me recliner lined to 4 inches in front of my nose. Couldn’t move legs or arms for 10 hours because it was so tightly packed. I couldn’t believe it was legal to fit that many people that closely together."
Cons: "Food could be better"
Pros: "My seat was next to bathrooms when everyone start using it start smelling too much very uncomfortable sitting there. Food chicken was very salted, they run out of drinks 10 hours flight dinner served at begging no snacks or anything till 2 hours before landing"
Cons: "At least air fresheners in bathrooms or something better so passengers can sit comfortably"
Pros: "The flight attendants were friendly. The seats were new. The movie selection was good."
Cons: "The scrambled eggs for breakfast appeared to be powered eggs, or overcooked eggs. The storage bins for the luggage were very small for the middle seats (aircraft was an Airbus A330-200). After several hours of flying, there was trash in the aisles and on the toilet floor. The toilets were dirty and not cleaned. Finally, the toilets ran out of paper towels and tissues with 3 hours to go in the flight, and they were never refilled. The flight attendants put a roll of toilet paper next the sink to use for your hands."
Pros: "flight attendant found me a seat away from the screaming babies."
Cons: "I was surrounded by about 6 babies. This is not acceptable for a long flight! I would like to have options as to where I sit. There should be a baby section where families pay more to be in a section on their own!!"
Pros: "Food was good but it would be great if we can select more options online before boarding the flight. Beverages were served without ice and you have to ask for ice cubes every time"
Cons: "AC in flight from Seattle to Delhi was at high temperature so we didn’t use any blankets or were not comfortable enough to sleep"
Pros: "One of the flight attendants was awesome!"
Cons: "I got bit by bugs. I’ve never experienced something like that on a flight."
Pros: "Good plane and service"
Pros: "Crew was very attentive and efficient. Flight was ready to leave on time but was delayed due to security concerns at Sea Tac airport; even though the flight arrived on time."
Cons: "I did not have a problem with anything."
Pros: "Food was ok. Beer offered at no charge. Lots of entertainment options"
Cons: "Plane was HOT no air and economy was unbelievably cramped and uncomfortable. 9 1/2 hr flight was torture"
Pros: "Staff were nice and friendly."
Cons: "The plane was dirty. The seatback was not clean, and the tray table was stained. The 9-hour flight did not have any USB ports or outlets for charging. The touchscreen did not work well, and my seat would not move forward or back without me pushing or pulling it. This"
Pros: "It was an overall good experience. Very well organized. Since both legs of the flight we're half-empty, it was easier on the crew too. They were nice and helpful. Everything very clean. Entertainment choices were good. Had an excellent entertainment system."
Cons: "Food was kind of bland."
Pros: "Crew is very friendly, seats are extremely comfortable and good room overall, comfortable flight."
Cons: "Hi, To be honest, it was embarrassing to serve that dish on such a major airline. Chicken with bbq sauce and corn or something like that. Was distasteful I couldn’t take more than 2 small bites."
Pros: "The Entertainment, the Food and the nice and friendly manner of all personell."
Cons: "Nothing."
Pros: "Such great personnel in the air - can't say enough how much I appreciated them."
Cons: "The airline as a whole, however, encourages you to book with them under the reasonable assumption that connecting flights with Lufthansa will be achievable. Now that I've seen Frankfurt, There was no way they could actually expect any of us to make our connecting flights. And they offer no compensation. When I did get another flight, it was terribly delayed. Talking in line with regular European travelers, they said they expect it. Also met several fliers at the service desk attempting to connect via entirely different routes, all having the same experience."
Cons: "Crew was not nice at all. They would skip us along the way while serving others, or even drop ice on us, and never said sorry once (instead, they would say it's only ice, or if I want 2 since they skipped me already twice when serving tea unlike the passengers around me on both sides). We paid nearly $6k for the 3 of us, but the crew made us feel as if we paid nothing. The entertainment system did not work well, and most of the time the movies refused to play. We were always suggested to restart, and were not even given free access to internet as an alternative. No one ever apologized for anything in the entire flight, it felt like this flight was a favor."
Pros: "Flight went smoothly boarding was a little delayed."
Cons: "Getting to gate 10 minutes after boarding time and no one had boarded yet."
Pros: "Friendly crew. Flight left on time"
Pros: "None"
Cons: "Most of it"
Cons: "Leg room was less"
Pros: "Services, Food, Crew"
Cons: "IFE doesn't had much options."
Pros: "service, care for my 85 pound dog and his kennel while traveling halfway across the globe! Thank you! Flight was smooth, services on board excellent."
Pros: "Aircraft crew was decent."
Cons: "Seattle to Frankfurt aircraft was the dingiest and most crammed aircraft I have ever used on an international leg. The seats were tiny so much so that some other passengers were not able to fit in! The lighting was gloomy, restroom dirty within the first hour of the flight, no space to keep any magazine or books on the back rest of the seat in front of you, etc. Overall - such a bad experience. Not expected from Lufthansa, especially as I have had great experience with Lufthansa earlier."
Pros: "The view - flying low over the northern extremes of Canada was superb. Thanks to the pilots etc."
Cons: "The flight was late arriving at Frankfurt. I requested a notification to my connecting flight. Crew member frowned, turned away and in formed me, "We don't do that". I ran to the Connecting Lufthansa flight and barely made it on time."
Pros: "Boarding was done very quickly. Unlike the norm nowadays, people weren't cramming every single inch of space in the overhead. In addition, the flight wasn't full so my travel companion got to enjoy a full row to himself while I enjoyed an empty seat next to me to stretch out. The food was very good. The staff came by quite a few times to offer orange juice or water. The entertainment syren was excellent. I watched four full movies on the trip and have in mind at least a couple more for the return leg."
Cons: "Not a thing."
Pros: "Lots of room on a 747 - Lufthansa will probably retire them all soon. They handled my special meal request online and loaded the meals on the plane."
Cons: "The crew didn’t bother to confirm who had requested the special meals, and they perhaps were confused by the size of the wide body rows, so they served my dinner to the passenger in the window seat (seat K) instead of me (seat H) By the time I realized what had happened, my row mate had eaten half the meal. The crew also rammed my knee with a beverage cart while I was dozing. Not the best showing ever..."
Pros: "The boarding process made it easy to find my seat and get settled in."
Cons: "My seat back didn’t recline. But the one in front of me did. So I was penned in."
Pros: "Our dinner meal was quite good for airline food. After they reset my TV three times, it worked good."
Cons: "The breakfast left a lot to be desired. Leg room was very limited, especially after the person in front of me reclined their seat."
Pros: "service, good quick flight"
Cons: "late departure in Frankfurt; high noise level of the Embraer plane;s engines; failing AC in the cabin"
Pros: "The crew was super nice the flight was great no turbulence"
Cons: "Bad selection of food felt really sick after wards"
Pros: "Flight attendant was very helpful. She went out of her way to bring me a special tea. Large selection of entertainment."
Cons: "Food could've had more healthier choices. Also, kid-friendly food would've been a plus. Not enough leg room. Headphones were only working for one ear which is really bad for the ears. Air conditioning was really turned on really high and gave me a headache and the sniffles. I started throwing up during landing time. Horrible."
Pros: "Food was pretty good except for breakfast. Hospitality is great. Wish there was more access to water."
Cons: "Big passengers sitting near smaller passengers is annoying as they encroach on the limited space that exist and armrests suck as per usual."
Cons: "Seats recline too much. When the person in front of you reclines his/her seat, you feel like you're in a tunnel with the seat back just inches from your face. However, the flight attendant was very kind and asked passengers to lift seats for the main meal, which was very nice."
Cons: "Missed connection along with about 25 others due to the delay getting to Lisbon (no reasons given)."
Cons: "A kid next to me keep shifting and kick me and nudge me all the time. His dad was trying to stop him from moving too much but couldn't control entirely. I kept waking up"
Cons: "I was denied boarding. No one told me that my passport had to be 6 mo. to expiration. Why the hell do you even put an expiration date if you're going to deny all travels prior to 6 months?"
Pros: "The plane stewardesses were actually really efficient (German style). Because of being on the waiting list to get on the plane I couldn't get a seat next to my partner so they did the biggest math exercise to put us together. Props to them"
Cons: "The flight overbooked (I still don't understand this concept, since is basically selling twice the same seat, right? Is that even legal?) Also the system was down, so no check-in online = the biggest line at the airport, it took me more than 1 hour to check-in and drop my luggage, all to get there and the ground force lady (the rudest person alive) tell me that I had no seat available, that she was going to put me on the waiting list... WHAT? I bought my ticket already, waiting list? Well, to say that I highly doubt that I'll book with Lufthansa again."
Pros: "Nothing"
Cons: "Everything. No compensation given either"
Pros: "Lufhansa did a great job. During flights, everything was good."
Cons: "Security check in Frankfurt was terrible, violating all human rights in every possible way! Please don't tell me that it is for passengers safety; such a humiliation cannot be justified by any reason! Since Lufthansa uses this airport for the most of their flights, I would not fly with this company anymore"
Cons: "We were told by the Delta baggage handler that they strike one day each quarter. This would have been helpful information before we booked our flight from Kayak. We had to delay our honeymoon by 12 hours and fly into a different airport. Delta was great though and the Luthanza agent who rescheduled us was also great."
Cons: "their website did not allow changes nor did it provide a number to call"
Pros: "Check in smooth and professional. Please change places with Asia air so you are in front of rather than behind the hoard of people."
Cons: "On my flight from Seattle to Frankfurt I had one stewardess repeatedly skip me. She was a bit older. I thought after the first overlook she would take extra care but did not. This resulted in me having to ask the crew to repeat their previous steps just for me. "Hi, I know you are serving coffee but I wanted red wine". She was a bit clipped about having to repeat steps but what was I to do? She never looked up enough to see my hand and clearly didn't look at my face. She also didn't pick up my hand towel. I essentially had to rely on the rest of the crew but the care from this lady started to feel purposefully negligent of me. The rest of the staff was friendly and efficient. I also thought we were supposed to get an appertiff...one was never offered. Couldn't check in online. Was fine once I got to the countr but could you trade space with Asia air? It makes sense to have them at the end as they have a huge hoard of people it would be nice not to have to go through and several spots to check in. Check in at the desk otherwise was smooth and professional."
Pros: "The crew from Kili to DarEsSalam was tired. A fresh crew worked from DarEsSalam to AMS and they were great."
Cons: "The boarding process was chaotic. The passengers in the first boarding group had to fight through the crowd because there were no boarding lanes."
Pros: "Great atmosphere, crew was excellent!"
Cons: "I’m 6’5”, so legroom can always be a complaint, but this wasn’t too bad. The plane appeared to be fairly old and didn’t have WiFi. Entertainment also was on an older screen which was navigated by using an old in-seat phone."
Pros: "I was sorted on Row 3 and the drapes kept hitting the back of my head."
Cons: "Move the drapes a few more inches back."
Cons: "Boarding was crazy. Could not everyone in the gate area."
Cons: "Information on arrival time was not correct"
Pros: "Flight and the crew!"
Cons: "Staff at the airport pushing you to upgrade to first class but not making it clear only the first trip from Athens to Amsterdam which the first class uses same uncomfortable seats as the economy to pay extra 130 euros ridiculous airfrance stuff! I should have flown all the way to NYC first class!!!"
Pros: "Good amount of space on the plane, lots of movies to watch, good food and drink."
Pros: "Great airline"
Pros: "The crew was pleasant"
Cons: "Baggage checkin & flight boarding was slow & disorganized."
Pros: "Comfortable seat, great crew."
Cons: "Flight delayed, no USB port and no entertainment"
Pros: "The crew and the timing were ok"
Cons: "The seats were uncomfortable"
Pros: "Seat was comfy and spacious for economy class"
Cons: "Vegetarian meal was okay but could be more enjoyable if served with bread at start of meal."
Pros: "The bed was comfortable. Entertainment selection and large TV screen was good. The KLM crew is amazing, as usual."
Cons: "Food quality was not so good."
Pros: "Seat was uncomfortable. There was nothing to like. In past I have traveled by KLM but this time it was worst."
Cons: "No proper food service. Even to the passenger of Amsterdam no dinner was served. No inflight service. It looks like domestic flight. I will think twice to travel by KLM. The check-in staff at counter was absolutely arrogant. Staff ar boarding gate was nice."
Pros: "the trip was excellent and comfortable. LOved the windows that shaded out rather than the having to pull down the plastic blind. entertainment on board top notch screen huge One hostess , Helen was absolutely fantastic and the best I ve had on my many trips. I will recommend KLM whenever I can"
Cons: "the headrest is hard. Apart from that- all was fine"
Cons: "This return flight was much better than the flight going to Amsterdam. I believe the biggest factor was the type of aircraft. The old 747 just didn't meet expectations. The newer 777 on the way back was much more comfortable, with better amenities."
Pros: "Food, entertainment and crew was exceptionally friendly."
Cons: "Seats not great for such a long flight."
Pros: "The crew was great! The food was also much better than other airlines. And passing out whole bottles of water was much appreciated."
Cons: "If only there was a way to be able to lie down and sleep - you would be pioneers in aviation"
Cons: "No reading light in my seat..."
Cons: "Check in at Berlin was extremly slow. Staff was very unprofessional and not very friendly."
Pros: "Crew where awesone and the choice of entertainment was fantastic"
Cons: "Seats way to close together"
Pros: "The flight was perfect! Great food,movies and I even got to sleep !"
Cons: "All was well!"
Pros: "Snooth and efficiënt with a KLM service"
Cons: "No entertainment"
Pros: "The seats seemed to have more space on this plane which was nice."
Cons: "It felt strange that the crew members completely skipped over me when serving lunch and drinks. At least something as basic as water should be given to all passengers."
Pros: "Everything was great! Crew incredible. They acknowledged my wife’s birthday and made her feel special. Food was ultra salubrious. Loved the big screen monitor."
Cons: "No complaints about anything."
Cons: "Flight departed 35 minutes late"
Pros: "The cabin crew was so kind, efficient, and attentive. All meals and snacks were delicious."
Pros: "Food was excellent, frequent and filling"
Cons: "The seat was not comfortable compared to my prior leg of the journey. Unfortunately the bathrooms were not clean, I understand that it's not the sole responsibility of the crew and passengers need to be mindful too."
Pros: "We got a meal for a 1h flight only"
Cons: "No entertainment but normal for this type of flight"
Cons: "Unaccompanied minor flying to Lisbon overnight. Bag was lost. No real effort to assist. Bags of unaccompanied minor should be treated with priority."
Cons: "After more than two hours of delay... Initially the flight takes off was at 8:35... Then 21:20... Then 21:50... Then 22:10. Finally we took off at 22:40... Refund our money klm..."
Pros: ".Very much on time with pleasant service."
Cons: "Can nit find much fault fir a short run!"
Cons: "Crowded seating, 20-year old video system, headphones that did not match the two-jack system, lackluster service in flight. Generally my experience with KLM has been good, but this was well below average."
Cons: "Boarding was delayed a little due to weather as was takeoff. Cant blame them for weather but the connection was very tight."
Pros: "I personally do not appreciate the food on this leg of the journey Food Ams to Dxb is GOOD!!"
Cons: "The snack & “ solid eggs” in breakfast. Fresh fruit was good."
Pros: "Just great crew."
Cons: "Not comfortable at all and will not book KLM again."
Cons: "At some point the luggage was lost. here."
Cons: "Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again."
Pros: "good service"
Pros: "Usual professional and friendly service from my airline of choice for most destinations."
Cons: "Nothing"
Cons: "Pet was left behind at vacation destination as pet's reservation (made and confirmed through KLM) was not found at check in. Waiting for Customer Care to help get pet home and take responsibility for situation and getting no response. Very dissapointed, considering law suit."
Pros: "Short, comfortable flight. Nothing special. Got us where we needed to be without incident."
Cons: "Nothing. This is filler text to meet the min. characters."
Pros: "I have no complaints about the air crew. They where pleasant and attentive. Plenty of free entertainment. The food was good."
Cons: "my only complaint is the USB ports didn't work on any of the chairs that me and my family where assigned to."
Pros: "Friendliest economy class service I've ever encountered."
Pros: "Very good flight, excellent service and good food."
Cons: "I slept didn't have snack offered and no entertainment"
Cons: "Since we had two extra bags (paid for in Chicago), they demanded to see my receipt before we could board in Amsterdam to Nairobi. We had trouble locating the receipt and we were not given an explanation as to why we needed it again. We were traveling with 5 kids including an infant and we were not allowed to board until we found the receipt. I thought surely they would have record that I had paid, but I guess not. We were the last to board and all very stressed out. The staff seemed not to care the least in our troubles."
Pros: "There's almost no padding to them and they're very narrow. I know it's nothing new but I'll keep complaining until something changes, if ever."
Cons: "The crew was wonderful, the food was extremely good for economy cabin standards."
Pros: "Flight was overbooked. After paying 1.7k, they put me to another flight which took me 7 hours more to arrive SFO."
Cons: "Lost a piece of luggage between Dublin and Edinburgh"
Pros: "The flight attendants worked hard to make the flight a good experience."
Pros: "Rapid boarding with no delays"
Cons: "No snacks, no entertainment."
Cons: "No USB charging point working and I had purchased on board wifi"
Pros: "Crew was good. Boarding was good."
Cons: "Seats not that comfy."
Cons: "Flight delayed due to late arrival of aeroplane."
Pros: "The price point."
Cons: "Service was terrible, staff was rude. For an international flight they provide you next to nothing. Only 1 meal and soda or water. They didn’t even have coffee or give napkins with the meal. The seats were smaller than usual and uncomfortable. In addition they lost our luggage."
Cons: "It would have been nice to have a free drink and snack on the short flight. We would have taken some with us on the plane if we would have known that we had to pay for everything. Just something we have never experienced on any international trip before"
Cons: "Aer lingus uses double prong headphones which dates the whole experience earphones are uncomfortable and volume is bad. You have to pay for booze in economy for international flight, seats aren’t that comfortable but the selection of movies and tv is good. I will probably look elsewhere next time"
Cons: "Delayed flight, no snacks, and staff not as friendly."
Pros: "Great equipment. Decent entertainment, sparsely filled cabin. Seat change to isle request before boarding readily made with no fuss. I noticed that passengers could actually make out pa announcements both at PDX and in flight. Doesn’t bother me anymore when I can’t but can be very concerning to anyone who rarely flies. Never understood going to the trouble of making announcements both pre-boarding & on-board pre-flight, that no one can even make out. That was not an issue here."
Cons: "Better lumbar support is always appreciated, adjustable lumbar would be very nice and could make or break an entire flight. No seat on any flight should ever be even the slightest ill repaired. Again, this equipmemt all seemed great. Lastly, since I prefer to always have a water, coke or coffe and or snack in front of me during entire flight, a bit of self serve (grab a water, coffee or snack yourself without having to make staff work a simple task would be nice on every flight. The flight from SEA-DUB was basically great and equipment is always of the utmost importantance."
Cons: "No food or even water boarding on time but delayed for no reason"
Pros: "Not a lot"
Cons: "The flight was delayed for 6 hours due to a mechanical problem. For 6 hours the passengers were told little or nothing & were eventually given a voucher for $10 to redeem on plane. Mechanical problems can of course occur,but how the airline,Aer Lingus,dealt with this was appalling."
Pros: "Crew and flight were polite, kind and professional."
Cons: "Slightly delayed flight."
Cons: "my seat wouldn't stay up, kept sliding back seat27a."
Pros: "Lots of entertainment. Spacey seats and plenty of bathrooms."
Cons: "The food wasn't great and I wish they would have picked up the dinner trays way sooner"
Pros: "I loved that they had blankets and pillows available, and the seats overall were comfortable. I also loved the in seat screens so we could watch movies. The select was a little limited compared to other airlines, but they still had some brand new releases. They also fed us two meals and a snack, and the crew was super nice."
Cons: "The boarding process was a little confusing. It was done by row numbers but not very well announced, so I wasn’t actually sure when my row was supposed to board."
Pros: "The movies available, the plane was new"
Cons: "Due to a computer software malfunction our departure flight from ORD to Berlin was delayed 1.25 hours causing us to miss our connecting flight in Dublin. Very little updated information about our ETA was made available, the crew kept insisting that we were going to not miss our connection."
Pros: "Plane was half full."
Cons: "Food was terrible, and if you’re white and your significant other is black you may have to request things for her because she won’t get them even when she asks"
Pros: "The leg room was smaller some of the other airlines. The seat was so uncomfortable to sit on for the flight."
Cons: "Seat"
Pros: "On time and friendly"
Pros: "Nothing"
Cons: "Nothing"
Pros: "Everyone was super cheerful and happy to help."
Cons: "Passengers line up to board instead of waiting for their number rows to be called. I ended up boarding later than most and the overhead lockers of the front rows (where I was sitting) were completely full. I had to place my baggage very far back and wait for almost everyone to leave the plane so I could collect it."
Pros: "Used the self check-in and an agent offered to help. She was fantastic!"
Cons: "Cattle call boarding.... No system. We prepaid 80 Euro for two carry-on size bags because they were slightly over the 10 kilo limit and then they announced at the gate that if carton bags were over size or weight, they would check the free. Really!!!!"
Pros: "Food, crew"
Cons: "No wine for economy class on a nine hour flight?"
Pros: "check in was efficient."
Cons: "purchase of beverages; lack of understanding food schedule"
Pros: "Great crew"
Cons: "Very old aircraft. Single aisle narrrow bodied"
Pros: "on time"
Cons: "no movies"
Cons: "Food & not enough water served. The seats had very little leg room on flight from Dublin to Lisbon and people had to maneuver their bodies to get into the seats."
Cons: "No entertainment for a 3 hour flight??"
Cons: "I can't actually make a comment on the food since u have to pay for it and I didn't want to. Nothing appealed enough to pay for it. Entertainment wise, there was no entertainment so I have it one star"
Cons: "Did not likevthe fact that beer and wine was not included on a trans Atlantic flight."
Pros: "I missed the flight, and was put on a scheduled one for the next day. Also, I love the fact that I can do customs before arriving stateside."
Cons: "The air conditioning on board was FREEZING. It took three tries to get a blanket."
Cons: "Cramped seating. No food or beverage provided without charge."
Cons: "When I sat down at my seat, the entertainment screen froze. I kept telling the flight attendants to help me out and they kept resetting my screen but nothing happened. So they gave me a complimentary Wi-Fi card, but there was no service or wifi available. One flight attendant tried to help and said he would come back. 45 minutes later... he never came back! I pressed the call button to get the flight attendant's attention, and no one came for an hour and a half! They saw the light above my seat, but they just kept walking past me! I raised my hand to get their attention, but they ignored me and walked right past me! I appreciate the fact that they were trying everything they could do to help me out, but when they started ignoring me every time I asked them for help...that was just rude and my anxiety began to rise! Worst flight experience I have ever encountered."
Cons: "Flight did not include a snack: even a tea cost $3."
Pros: "Everyone was polite and helpful... and we were on time !"
Pros: "Nice, punctual, quick flight!"
Pros: "The flight was so short that the food and entertainment part of this survey are. It applicable. They did serve food for purchase though and they had some good choices"
Pros: "Not much"
Cons: "Limited choice of entertainment. ****Lost my luggage both destination bound and home bound**** Being kept in the plane for an extended period of time after having landed. Not even a coffee during the connecting flights (Dublin to Cardiff and Gatwick to Dublin). Poor connecting facilities and having to repeat security screening before connecting to the second leg of trip."
Pros: "good crew"
Pros: "Great experience"
Cons: "Flight was delayed and we didn't have an update"
Pros: "Boarding was quick and efficient, the flight arrived 10 minutes early."
Cons: "There was no food or entertainment offered, aside from what you could purchase. But as it was a very short flight, this didn't make much of a difference for me. Overall, good short flight."
Pros: "Service, flight on time, arrived 30 minutes early"
Cons: "Pram was not waiting at the plane"
Cons: "There was no complimentary food at all not to mention about baverages and hot drinks. Te flight was pretty long, almost 3 hrs so I was expecting litlle bit more, especially after 8 hrs connecting flight."
Pros: "The flights were on time."
Cons: "Since I booked with vayama, through kayak, aerlingus wouldn't give me more than basic flight info. I didn't even know if my seats were confirmed, which they weren't on the connecting flight with JetBlue airlines. The website said to contact vayama, vayam said contact the airline. Our bags were not checked through to our destination so we had to collect them in New York. They are supposedly partner airlines but told us we had no choice and had to wait till aerlingus opened customer service. We were stuck for 7 hours outside of security with our bags and 1 Duncan donuts kiosk. The 12 hr overall layover was bad enough without that. I understand that booking through discount sites comes with its own cost, but you should know if you have assigned seats and that your baggage will make it."
Pros: "Aer Lingus' international flights have a while's way to go before it can rival that of Singapore Airlines (in terms of food & comfort), but overall it was good for the price. It was spacious enough for my 12" MacBook to be used, but as is the case with all flights, it gets crammed when the front passenger reclines."
Cons: "i checked my luggage on tuesday 09 13 2016 and didn't get it back until monday 09 19 2016...very very very inconvenient since i was flying back on wednesday 09 21 2016 very early in the morning..."
Pros: "Great!!"

Nice,o time,and great foods and services.

Pros: "Na"
Cons: "They have a terrible communication problem, they never communicated why the flight was late, they never communicated what they were doing or what was happening. Bad customer service. Bad communication with the client. They told us when I asked several times that we would not lose our connection and that everything was fine and that was not the case. We lost the connection. No one told us anything. Another problem was that the girl in the boarding process removed the suitcases tickets from the boarding pass and did not want to return them, and held it without any cause. The flight staff went looking for us. Pretty sad and disappointed by their service. I understand that they were causes outside the airline but must communicate to the client. They cannot remain silent and say nothing."
Cons: "Boarding (by bus) was a total chaos. I had to stand for about 50 minutes, either on the crowded bus or, after climbing with great difficulty three flights of stairs to a high jet-bridge (I am 76), standing there forever with 200 persons waiting to get access to the plane. Totally unacceptable. They started the boarding process early (50 minutes before departure), but passengers were allowed to actually board the plane at the time it was supposed to take off."
Cons: "New variety of food"
Pros: "Not much, seats are super uncomfortable"
Cons: "Better code sharing with KLM"
Cons: "Our request for vegetarian meals got lost after a glight was cancelled."
Cons: "Crew on the ground was very rude"
Pros: "Fly was delayed.i was told my bag would go to end but it was not.instead of coming to the hotel 7pm i came 1am."
Cons: "Explain me to take the bag on time.it was almost left in the airport."
Pros: "Excellent service"
Pros: "Had decent room space seats comfortable"
Cons: "My luggage could have arrived for a start"
Pros: "Very nice crew. Nice meal service and drink service throughout. Great choice of entertainment."
Cons: "Not really an Air France flight, AF not interested in taking care of their frequent fliers."
Pros: "Very efficient boarding. We actually departed earlier and then landed in Barcelona 15 minutes ahead of schedule. Overall a very smooth experience."
Pros: "Intranet meant I could watch movies on my iPad"
Cons: "Seats are very uncomfortable"
Cons: "make passengers from Nigeria to feel respected and important. Imagine no entertainment in the aircraft in addition to a very poor food."
Pros: "The CDG airport is very bad in terms of finding your connections, the flight to CDG from LAX had a very old entertainment system and was hard to use."
Cons: "they lost our luggage very inconvenient"
Cons: "Being in the middle of the 4 seats with guys on both sides. They tend to restrict the space by using the arm rests."
Cons: "I ordered Asian Vegetarian Meal. But they served me only pasta."
Pros: "No extra charge for simple refreshments."
Pros: "Liked the transfer"
Pros: "SFO - CDG (Air France) was a great journey in all respects. But the one major reason for that was, the middle seat was empty. I was so fresh after the journey, would definitely recommend this flight to anyone."
Cons: "The flight was delayed by atleast 45 mins and therefore had to rush at the CDG airport to catch the next flight."
Pros: "That I was able to sleep a bit on the flight - and that we gained an hour."
Cons: "It left at 6 am. Which means we had a wake up call from the airport hotel at 3:30 am to stand in line with hundreds of others. The Air France app on my phone didn't let me pre- check in."
Pros: "The food, beverages and choices of movies, entertainment There was a medical emergency that caused the flight to land in Canada. This was handled very professionally - I hope the passenger ended up getting the care needed and is doing well."
Pros: "The size of the plane was nice. They had a good move selection. The vegan meal I was given was great."
Cons: "It was loud, cold, the food was just okay at least my vegan meal was the bomb but it would have been better had when we booked the flight it allowed me to also choose this option for my husband. Since he is vegan as well."
Pros: "25 min ahead schedule!!!"
Cons: "Cabin space, too narrow rows."
Pros: "Onboard crew was friendly. Dinner was good"
Cons: "Cabin was very cold. Not enough legroom compared to orher international carriers. Male flight attendant kept bumping into my husband sitting in aisle seat so he unable to get any sleep. We tried upgrading to business but Delta said we had to contact Air France in Detroit. When thrre, the gentleman on ground crew was actually rude when I asked about it. He could have just politely told me there was nothing available. Not looking forward to my return flight"
Pros: "Good seat width Great movie selection Great food and drinks Nice and large A380"
Cons: "The interface of the screens seemed old Need to anticipate the needs of the customer better For example, they brought me my special meal first, but I had to wait 30 minutes later to get a drink to accompany it. The food was getting old. Did not see any newspaper/periodical selection. That would have been nice."
Pros: "Very good male crew member. Pilot genuinely apologetic for the delay."
Cons: "After running due to a 1 hr 10 min change over between flights boarding didn't prioritise anyone but I got on fine. Only to be told at the departure time that there was a problem with the baggage hold and we were delayed. In total 50 minutes late leaving. Breakfast a simple brioche with nothing to add to it."
Pros: "That flight have been short"
Cons: "Fly attendants have been in hurry when they served snack"
Pros: "Very helpful cabin crew and did well to communicate in English to me. Flight was on time and landed ahead of schedule"
Cons: "Entertainment system had to be rebooted as it did not work Small screen handset was not working for the entire flight food selection was not as big as KLM or China Eastern Bathroom on board was smaller than KLM or China Eastern which meant changing into more comfortable clothing for the night flight"
Pros: "Faster"
Cons: "Waited a while before take off."
Pros: "The crew and flight was faultless"
Cons: "We were not advised of a flight number change or checking in location change. This could have resulted in us missing our flight."
Cons: "Horrible Crew..."
Pros: "Flight was smooth"
Cons: "Food"
Cons: "Booked assistance and got dumped at the gate 3hrs before departure, no English spoken and didn't even ask if my mum needed the bathroom or if we wanted to do some shopping. Just in a rush to get rid of us. Flying only KLM from now."
Cons: "It was delayed. I missed my flight. Now I don’t have a bag. I am not sure when I get it back or if I have to go all the way back to the airport"
Cons: "The room between seats is unbearable."
Cons: "no vegeterian sandwiches very disappointed"
Pros: "Love the flight attendant, loads of food couldn’t take it anymore. Professionalism at its peak."
Cons: "NA"
Pros: "The food, the service and everything else is fine, quite good."
Cons: "However, our baggages were 1 day late. Your missing baggages would deliver to you 1 day later, for some maybe 2 days later...Quite a few people said that it's been always like this with air Aeroflot if there is a transfer flight."
Pros: "Crew was welcoming"
Cons: "Space between the seats was too small."
Pros: "The crew was very nice and helpful."
Cons: "We ordered a vegetarian meal. However, the vegetarian option offered to those who did not order a special meal looked better than the vegetarian option that we received."
Pros: "No issues, quick trip, friendly staff, comfortable ride..."
Pros: "It was a 30min flight not much to say The crew on the ground really took care of us"
Cons: "Na"
Pros: "Chicako Párizs szuper , udvarias személyzet pontos érkezés."
Cons: "."
Pros: "The fact that the plane made it to SFO"
Cons: "Downgrade without notice or consent separating family. Paid full fare for family to travel business class together. AF without our knowledge downgraded one member, separating a mother from her 3 year old daughter. They offered no compensation, no apology, and CDG ground crew was terribly rude. All anyone said was, nothing to be done, now please Leave"
Pros: "The service and food were excellent plane was clean."
Cons: "No entertainment system"
Cons: "We tried to check our bags through Charles DeGaulle onto our connecting Air Canada flight and the agent refused to even discuss it. Pretty bad service."
Pros: "It was as expected."
Cons: "Boarding was a bit tedious because we had to first board a bus to take us to the airplane."
COVID-19 information

Safety measures for airlines flying from Seattle to Lisbon

Airlines flying from Seattle to Lisbon have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Seattle to Lisbon

Mandatory masks

Masks required on board, masks provided on flights from Seattle to Lisbon

Social distancing seating

Middle seats unavailable to book on flights from Seattle to Lisbon

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Seattle to Lisbon

Flexible cancellations

Waiving of change fees. Search flexible flights from Seattle to Lisbon

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Seattle - Lisbon Flights

Departure:

Seattle (SEA)United States

Destination:

Lisbon (LIS)Portugal

Return flight deals:

Lisbon - Seattle

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$2,476
$1,111
$576

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$533