PHX - SEA

Find cheap flights from Phoenix to Seattle

Round-trip
1 adult
Economy
0 bags
Sat 4/29
Sat 5/6

Here is why travelers choose KAYAK

Save 22% or moreCompare multiple travel sites with one search

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Search hundreds of travel sites at once for deals on flights to Seattle

Good to know

Low season

January

High season

June

Cheapest flight

$41

Average price round-trip

$255

Good deal round-trip

$338

Good deal one-way

$119
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Phoenix to Seattle
(avg. price over the last 2 weeks)
or less
or less

When to book flights from Phoenix to Seattle/Tacoma Intl

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

Top tips for finding a cheap flight from PHX to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $119 or less one-way and $338 or less round-trip.
  • The cheapest flight from Phoenix to Seattle was found 89 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 January.
  • Morning departure is around 9% more expensive than an evening flight, on average*.
  • You will be departing from Sky Harbor Phoenix International Airport (PHX) when flying to Seattle from Phoenix, Arizona. The Sky Harbor airport is situated approximately 3 miles east of downtown Phoenix. The airport is ranked as one of the busiest commercial Arizona airports and serves as a base for Southwest Airlines and a hub for American Airlines both of which fly to Seattle.
  • Seattle Tacoma International Airport (SEA) has approximately 100 gates which are strategically located on the airport satellite buildings. Transport to downtown Seattle is available via Line 1 service. One-way fare for adults is about $2.50.
  • The Sky Harbor airport is pet-friendly. This airport has approximately seven reserved areas where pets can stretch, play, relieve themselves, and where you can clean them. Some of the pet areas include The Paw Pad located in terminal 3; Bone Yard located on terminal 4 immediately after the baggage department; and Park and Bark which is at the Economy parking lot.
  • The Sky Harbor has different parking options including terminal 3 parking, West economy parking, East economy, and valet parking. You will part with approximately $34 as a parking fee for valet parking while you will part with approximately $4 per day for all other types of parking. Special parking spaces are also available and they are free of charge.
  • For nursing mothers, Sky Harbor Airport (PHX) offers nursing stations that are located at Terminals 3 and 4. Each room features a sink, baby changing station, soap and paper towel dispensers, electric outlets, and comfortable seating. In addition to the nursing rooms, the airport offers Mamava nursing pods located near Gate 22 and at Checkpoint D after security.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Phoenix to Seattle flights

Top 5 airlines serving Phoenix Sky Harbor Intl to Seattle

Scores according to KAYAK customer reviews
8.3
Alaska AirlinesOverall score based on 29421 reviews
8.5Boarding
8.3Comfort
8.8Crew
7.9Entertainment
7.9Food
Airline reviews
Cons: "Didnt have entertainment on app on the flight from Seattle to Spokane"
Read more about Alaska Airlines
Cons: "Didnt have entertainment on app on the flight from Seattle to Spokane"
Pros: "Seats were comfortable. On time."
Cons: "Food could have been better."
Pros: "Yes"
Cons: "Nothing"
Pros: "Fast flight"
Cons: "Seats were a little uncomfortable. The boarding process took a while."
Cons: "No seat choice before flight unless I wanted to upgrade. Flight was delayed twice before boarding without any reason given - I was only looking at the information on the app"
Cons: "Flight was very late"
Cons: "Alaska started our flight and all the chaos begun. I can’t remember the name of the agent but I have two little kids that I drag around d because she messed up our flight. I was really really upset of what happen."
Cons: "No power outlets"
Cons: "Delayed flight"
Cons: "Paying an extra 200.00 dollar to keep my flight because your booking system failed to make my reservation with my airline."
Pros: "On time and nice crew."
Cons: "Was told there was free entertainment in flight but was not true."
Pros: "All staff were professional and efficient. I liked how fast it was getting my bag checked."
Cons: "Didn't care for the net pockets on seat in front of me, my stuff fell out. Guy next to me was really rude and kept bumping me and talking really loud."
Pros: "Landing"
Cons: "Well besides spending a good amount of money. 7 hour delay because the plane was busted. Ruined not just my night but everyone else who flew southwest I was supposed to meet up with. Supposed to arrive at 7. Had to take a uber because it’s now 3am. First and last time EVER fly with them"
Pros: "The quality of the aircraft, staff, service and food was excellent."
Pros: "Always felt safe. Crew was friendly."
Cons: "The Gogo app would not play movies. I even deleted and downloaded again and nothing. Made for a long flight. The air was was turned down so low I couldn’t feel it or provide fresh air to counter the offensive body oder of the person next to me. My vent was fully open. Flight delayed."
Pros: "Very friendly! Accomadateing! Fun!"
Pros: "Nothing"
Cons: "Rude staff, they overbooked my flight and I had to wait 9 hours for the next flight. No compensation for time lost. They made it seem like it was my fault that THEY overbooked."
Pros: "I loved how helpful everyone was. It was our first time flying with a baby but everyone answered all of our questions and helped us."
Cons: "The only bad thing was on one of flights there was no changing table in the bathroom I used."
Pros: "Nice plane"
Cons: "Crew wasn't too polite. Smacked a few people with the cart"
Pros: "Friendly, efficient crew. No delays."
Cons: "Some of the foot Wells are much smaller than other and present a very real problem both for baggage and tall folks. It seems unfair to pay the same price as someone who gets vastly more foot space and the airline is really doing its passengers a disservice by not making it explicitly clear that certain seats are more physically constrained than others. (737 isle and center seats."
Pros: "Staff was awsome"
Cons: "Had to sit next to some one that was too big to big for the seat and end up taking up half of my seat . Not the staffs falt but they could see i could not sit properly in my seat."
Pros: "Great crew. Comfortable and on time."
Cons: "People were instructed to line up in a certain area for general boarding. However, after boarding started, people just walked up through the first class line and instead of telling them to get into the correct line they let them board...and just left those of us in the correct lane to wait."
Pros: "Seating. Flight time."
Cons: "Everything was good."
Pros: "Excellent Crew - I flew standby, so have great gate agents and flight attendants makes all the difference when you’re hoping for a seat. In flight they are professional and personable and keep you up to date on what you need to know! Plus, I’m always happy when my flights have USB ports so I’m fully charged when I deplane."
Cons: "I always want more leg room or a little more room under the seat in front of me. But I didn’t upgrade for a roomier seat and there was more than enough overhead space, so truly can’t complain about it!"
Pros: "Attendents were great good service"
Cons: "Flight was 2 hours late but the fly attendents"
Pros: "The crew was great and friendly. Est landing i have had in years."
Cons: "The seats are lime sitting on wood."
Pros: "Two nice AS Flights"
Cons: "35 minute flight connection in Chicago to Paris fkight."
Pros: "Very friendly staff and flight attendants, aircraft is very clean. Tasty snack selection, good brands."
Cons: "Maybe have safe toys for toddlers."
Pros: "I was drunk, and my pumpkin. Sara was very polite"
Pros: "Smooth flight, no disturbances."
Cons: "Late arrival"
Pros: "After an extremely frustrating experience with American related to flight changes, I was able to book a last-minute one-way flight with Alaska. As always, every team member was helpful, the flight was very smooth and the in-flight entertainment made for a quick, painless trip. Definitely a loyal Alaska customer!"
Pros: "Everyone was incredibly nice and professional"
Cons: "The only complaint would be there were no more cheese and fruit plates left by the time they got to 30 C"
Pros: "Everything went really smooth, including the flight - hardly any bumps at all. Loved the free movie selection and the free messaging connectivity."
Pros: "I was heading to Scottsdale on Alaska for a Bachelorette party. Alaska took notice and gave me and my friends some bubbly to start the celebration off right! I was so impressed!"
Cons: "The bathrooms are shockingly tiny!"
Pros: "Boarding was so quick and easy"
Pros: "People were nice"
Cons: "They lost my bag...delayed our flights...and made me go mentally insane"
Pros: "Liked the whole experience, but can't really comment on food or entertainment b/c i used neither. All the other aspects of the trip were delivered efficiently."
Pros: "Complimentary alcohol was nice for a long flight"
Pros: "UPBEAT flight attendants, helpful, courteous. Front check in staff was great. But they were unable to fix my wife's problem."
Cons: "Seating poor, leg room, hip room etc. Person in seat in front of me leaned there seat back 2-3 inches. There wasn't enough room to read my book. Everything else was satisfactory."
Pros: "chech in crew and flight from Phoenix was comfortable"
Cons: "The plane from Seattle to Edmonton was confotable."
Pros: "Love Alaska airlines!"
Pros: "Spacious and comfortable Boeing 737-900 which was not over-booked. Lots of room and efficient boarding process. Friendly crew."
Pros: "Flew Frontier on the way to my destination and Alaska on the way home, the difference was night and day. Everything was better, the seats were comfier, the tray table was larger, there was a wifi option, complimentary food and drink, much more professional staff, even the plane noise was much quieter and to top everything off we got home over 30 minutes earlier than expected. Alaska is definitely my new preference."
Pros: "I really like Alaska Airlines overall. Their planes are newer, have power outlets at every seat and the oversize luggage compartment make it easier for everyone to fit with their carry on bags. Way more comfortable than their main competitor at our little airport."
Cons: "I got a notice to check in the day before my flight, which is fine except that they had completely changed my flight to a different one with no prior notice. I searched through my email after I got home in case I missed it, but couldn't find anything. I would have appreciated a bit better communication."
Pros: "I loved the people I met during my flight. Great conversations. I also loved charging my phone during my flight."
Cons: "Nothing upset me. Our staff took great care of me."
Cons: "I didn't like that my first checked bag was $25. I thought it was no charge"
Pros: "Newer plane. Amazing staff/crew. Lots of flight options and fair prices. Also if you are an Alaska49 member you TWO free checked bags."
Cons: "Crowded boarding. No meals. No inflight movies."
Pros: "Flight crew was awesome"
Pros: "The flight was smooth, I liked that the captains spoke to us and the crew was very friendly."
Cons: "On other flights we get a whole can of soda, on this flight I got a out half as the flight attendant split the soda between myself and another passenger."
Pros: "When I asked for a seat change the crew was very accommodating"
Cons: "With covid in Seattle I was placed next to a restroom. I did not see any bathroom sanitation occurring during the flight, and no sanitizer available anywhere."
Pros: "Flight was good and crew were good. Nothing very outstanding but by no means a terrible flight."
Cons: "The in flight screens weren't working well."
Pros: "Good seats. Crew was not very hospitable. They went by with water and didn’t give us any. We upgraded for the complementary cocktails and my husband didn’t even get a chance to get one."
Cons: "More attention especially for the upgraded seats that offer complementary things. We got better service in our economy seats on the way to LA. I wouldn’t pay extra to upgrade again."
Pros: "The airplane seats and entertainment were 150% bettter than American"
Cons: "The check in area felt cramped, understaffed and like a 4th rate airline"
Pros: "Food was decent. Entertainment was decent."
Cons: "Better choice of snacks"
Pros: "Flight was cancelled - we were moved to an Alaska Air flight. That is why all of the NAs. What was good is that the moved us to another flight in a timely manner. Also, the gate attendant kept everyone informed of what was happening."
Cons: "On time flight"
Pros: "Entertainment was awesome. Although airlines are stingy with snacks, Delta had a good overall selection and very generous."
Cons: "Something that cant be changed overnight, however, there should be a little more Aisle space for folks pass through as my shoulder was getting beat up after every passing person and cart."
Cons: "Connection at Schiphol often tricky;"
Pros: "Pilot was super nice and informative when the flight was delayed."
Pros: "the plane was pretty empty"
Cons: "The times available were terrible!"
Pros: "Good crew"
Cons: "The WiFi didn’t work well"
Pros: "The crew was excellent"
Cons: "Better breakfast and the seats weren’t very comfortable"
Cons: "The wrap didn't taste too well."
Pros: "Crew was friendly, helpful and provided comfort"
Cons: "Change the movies more ofti"
Pros: "free movies on the flight"
Cons: "The check-in process at SFO airport was poorly managed."
Pros: "The crew was so lovely and accommodating, flight was smooth, and I was impressed with the meal service. I travel a lot and this was one of my best experiences. I will definitely favor Delta in the future."
Pros: "Jeff was our flight attendant in first class. He is an excellent flight attendant. He has an amazing attitude and his manner made us feel as if we had been friends with him for years."
Cons: "Passengers who pay retail for first class on domestic flights should get access to the Delta lounges even without the AE card. Other airlines do this, and we have come to expect it."
Pros: "The flight was smooth and the crew was very professional"
Cons: "Have wifi available"
Cons: "Delayed 3 hours"
Pros: "Entertainment on the flight was fantastic."
Cons: "Delta really struggles with trying to get everyone in the plane in an orderly fashion. Window seats must climb over all of the aisle passengers that got on before."
Pros: "Good flight."
Cons: "Nothing."
Cons: "Separated from my wife even with pre-assigned seats. And One of the stewardess would not take my banana peel and has asked me to dump it into lavatory trash myself. She did not want to handle banana peel without a glove."
Pros: "Exceptionally helpful & attentive flight attendant, comfortable, on time"
Pros: "The snacks were decent on the flight. Everything else was a disappointment."
Cons: "Unexpected delay for take off after being told the flight was going to be on time. They couldn’t give us a reason or an eta on take off while waiting at the gate which affected my ride situation once I landed in Seattle."
Cons: "Could not get my boarding pass from Delta for the flight from PHX to LAX. Aeromexico did not confirm that leg of the trip, so I lost all day and had to buy another ticket for tomorrow. Still, Aeromexico has not solved anything"
Cons: "Full flight and tiny seats surrounded by 2 300lb guys and they wouldn't let me switch my seat."
Pros: "Makes all the difference to have Flight attendants and pilots all wonderful. Gratefully, ~Elana"
Pros: "Crew was friendly and helpful"
Cons: "Our flight was delayed by almost 2 hours and caused me to miss my connecting flight. Next available flight was a 6 hour layover that I was not expecting."
Pros: "A pretty well-run flight, till we landed and waited on the tarmac for a gate. Otherwise, uneventful. Lunch was decent. Crew was good."
Pros: "We had terrible turbulence for probably 4 of the nearly 5 hour flight. The turbulence were the Pitts, but the plane, amenities, staff and amenities were top nothcj! Highly recommende Delta."
Cons: "Bad turbulence"
Cons: "Food was bad."
Cons: "Poor WiFi. Paid extra to get it, but didnt sporadic at best."
Cons: "Left about 2.5 hours late because of a broken seat of all things. Apparently Delta doesn't bother to have maintenance staff on site at the airport."
Cons: "Nothing"
Pros: "Counter agent found reservation but not ticket number(?). She was very helpful and nice but Delta reservation system was a total mess. Barely made boarding even though we arrived airport plenty of time before the flight."
Cons: "Counter agent."
Pros: "Clean plane, really friendly staff, flight arrived 45 minutes early much to my surprise. I'm used to flying with cheaper airlines, I won't be doing that anymore in the future."
Cons: "Paid $28 for a Wi-Fi package that didn't work. No refund...."
Pros: "Polite and thoughtful crew took care of our needs. Beverage service came through at least twice. Crew persevered through difficulties with the in-flight entertainment system and finally got it to work for us. :)"
Cons: "N/A"
Cons: "The crew didn't even have the decency to wait for passengers to deplane. They were long gone by the time we got off. I found this pretty terrible service. Oh yeah and they announced the wrong arrival gate too. I'll never fly Delta again. There are better airlines that treat customers with more respect."
Pros: "the flight was on time and the staff very helpful"
Pros: "The Flight crew was great and the pilot got us there with the least amount of delay as possible. Thanks everyone!"
Pros: "New comfort seats. Nice staff. Pilot kept us continuously updated."
Cons: "Unclear info on upgrade [priority boarding when upgraded?]. Inability to upgrade ticket made using mileage points or upgrade at counter at gate."
Cons: "Unkindness of gate agent"
Cons: "1. Boarding order is not by seating making boarding very inefficient 2. Carry on bags were mandatorily checked at the gate when there was plenty of overhead bin space."
Pros: "Nothing"
Cons: "Poor hospitality by alaska airline staff, especially by MrPavel at gate H4, 01nov2016, prior boarding around 0730am"
Pros: "The captain was informative about the delay in taxiing/takeoff, and the in-flight beverages were good."
Cons: "I was in a middle seat."
Pros: "Nothing to like.."
Cons: "Everything about the flight..."
Pros: "Good seat. Good movies."
Cons: "A better range of free food choices would be nice."
Cons: "Horrible experience!!"
Pros: "Flight attendant very good at updating the passenger"
Pros: "Nice and easy. Smooth the whole way"
Cons: "."
Cons: "They already know they will have a delay but they don’t act before happen"
Cons: "Delayed 1.5 hours each way for maintenance, did not allow us to switch seats to sit together previously at flight and the flight was very empty. Very uncomfortable seats. Will not fly AA again"
Pros: "Nothing. I missed this flight because of a delay of my flight on Friday."
Pros: "Nothing"
Cons: "Everything"
Cons: "It was very hot on the plane."
Pros: "nice entertainment when you use the AA app."
Cons: "Unbelievable turbulent and bumpy ride. Not AA's fault but the question was "how was the trip?" It was a white-knuckle ride."
Pros: "that it's over."
Cons: "sat on tarmac for 45 minutes! AFTER landing... unacceptable."
Pros: "The attendant in first class was really good at his job. The rest seemed a bit lost"
Cons: "The food. The "lasagna" looked and tasted like it came from chef boyardee can"
Pros: "No issues - which is what I expect"
Cons: "USB chargers on seats"
Pros: "comfortable seats"
Cons: "food"
Cons: "Well organized loading, consistent beverage service"
Pros: "The flight attendants"
Cons: "The pilot was too aggressive in regards to the take off and landing, landing was way too hard and fast"
Pros: "Entertaining"
Cons: "Crew"
Pros: "Nothing!!!"
Cons: "The seat in front of me reclined so far that the guy in that seat had his head less than a foot from my face and my knees were being smashed by his seat. Very painful."
Pros: "Other passengers"
Cons: "It was terribly hot and the attendants didn’t serve us regularly. The skipped us when we wanted cold water:"
Pros: "Boarding process was easy."
Cons: "This requires a list- 1. For a new plane, the seats were uncomfortable 2. The seats had no leg rests 3. It was an overnight flight, arriving before 6 am and all that was offered prior to landing was a mint...seriously, no coffee? I was in first class and expected a light breakfast but AT LEAST A CUP OF COFFEE. Never again will I pay for first class on this airline. AMERICAN AIRLINES SHOULD BE ASHAMED. 4. The crew was unwelcoming and unfriendly. Not acceptable when paying these prices."
Pros: "Only good thing about the flight is the price."
Cons: "I do not like the two hour delay, after a hour maybe consider getting another plane."
Pros: "Flight left and arrived on time Crew was very friendly Free movies while in flight is always nice Mobile boarding pass - every airline should have them (but they don't)"
Cons: "Having to pay $35 for a little extra leg room"
Cons: "The bathroom supplies were not replenished. In fact, the facial tissue was empty at beginning of flight. When the toilet paper ran out, I finally informed the attendant and they fixed everything. It seems that checking on that stuff was not part of their routine."
Pros: "Quick boarding, near empty flight."
Cons: "N/A"
Cons: "Left s half hour late because they had to shift cargo, then we taxied on the runway for what seemed like a half hour. My wife and I purchased our tickets in July but could never pick our seats and ended up 9 rows apart."
Pros: "Got us there"
Cons: "Cramped seating"
Pros: "Everything was great, but they didn't serve ANY complementary food on a 5 hour flight. What happened to lunch?"
Pros: "The flight was on time."
Cons: "The seats are hard and uncomfortable"
Cons: "Two hours late due to not having adequate equipment"
Cons: "Hot on plane."
Cons: "The seats are too tight."
Pros: "Planes were on time and staff was friendly"
Cons: "Nothing disliked"
Pros: "This flight was amazing! The crew was friendly and helped me when I had a panic attack from flying. It was very appreciated"
Pros: "left early and arrived early. cabin staff was friendly"
Pros: "It was effortless... easy boarding and accommodating crew. There was a lot of turbulence so only one beverage service and no food. Would rather be safe than have crew injured."
Pros: "The whole crew was great. Made the trip go buy quickly."
Pros: "We moved due to job change and American would not work with us to Change a reservation."
Pros: "He enjoyed everything about the flight it was comfortable the crew was excellent he met nice ppl thank you for the safety and class."
Cons: "I asked the woman at the gate prior to boarding if there were electrical outlets on the plane. She looked it up and said, its an Airbus, yes they have outlets at each seat. I didn't worry too much about charging my devices at my layover because I knew I could charge them on the plane. When I got on it was clear that there was no outlets, no video on the backs of seats, no devices being handed out for purchase. Nothing. I'm definitely used to more updated planes, but I would have been ok without the misinformation. I ended up on a 4 hr flight bored out of my gourd—which could have been avoided."
Pros: "Crew was lovely"
Cons: "1 hour late"
Cons: "Power cord plug-ins for cell phone in passenger lounge were limited. Wish standard seating allowed for more width, better way to avoid reclined seat in front."
Pros: "left and arrived on time. helpful staff. no glitches. reasonably comfortable."
Cons: "i did not rate food and entertainment because i did not partake."
Pros: "I love hoe comfortable the seats are! And the staff was very friendly and helping!"
Cons: "I didnt have a problem with anything. I enjoyed my flight and will be flying again with this airline!"
Pros: "Crew was nice including those helping with boarding. Smooth ride."
Cons: "Limited snack options."
Cons: "3rd flight with AA this year. Luggage damaged for second time."
Cons: "Broken seat and terrible gogo video experience with an attendant crew that was dysfunctional together for food/beverage service. I prefer to not fly AA."
Pros: "The young woman running the admirals club front desk was excellent Friday July 29"
Pros: "Crew was apologetic"
Cons: "No automated safety briefing after 2 hour delay at gate due to congestion at seatac."
Pros: "This is what every flight should be like."
Cons: "Pretzels was only free snack."
Pros: "Nothing!!! WORST EXPERIENCE IVE HAD TRAVELING"
Cons: "This was the worst day we have ever had flying. Spent 12 plus hours at the airport! Got on and off planes for 6 hours because of mechanical problems. 7 hours later they canceled the flight due to crew fatigue. The customer service was horrible plane was dirty it was an horrific experience. Alaska booked us with American Airlines. I will never travel American ever again. I'm considering using a different booking site. The experience was the worst I've ever had. Kayak Alaska and American are getting bad marks from me!!!!"
Pros: "The crew was nice and boarding was easy. The plane was on-time. That was the only good things. Seats didn't recline and there was very little leg room."
Cons: "Don't be fooled by the cheap price unless you plan to bring no luggage or pick your seat. After getting charged for each piece of luggage plus carry on and choosing our seat the price was much higher than it would have cost had we gone with another airline that included these items. Disappointing."
Cons: "It’d be nice to have internet access, whether free or for purchase"
Pros: "Fast everything"
Cons: "Small seat space/isle room I am 6'4 and had trouble keeping circulation in my legs. And the last second $45 fee means never again for me!"
Pros: "It didn't crash"
Cons: "The whole staff from the check in to the attendants was rude rude rude. Never again!"
Pros: "expeditious boarding, low fare"
Cons: "bad seats they do not recline of a 3-plus hour flight, no snacks or drinks without charges,"
Pros: "Nothing"
Cons: "Customer service $45 carry on"
Cons: "Frontiers prices might look good upon booking but you are charged for everything. $45 extra for a carry-on, $2.95 for a can of soda, etc... cramped seating,"
Cons: "The price is average until you start adding the luggage, seating and all the extras, though it is all listed in the purchase. My son bought these tickets. I purchased the same round trip flight through another airline for half the price at the end of August with two carry on and two checked bags included. It was good flights as far as service."
Pros: "Ticket price"
Cons: "Add on price for everything... carry on by itself $40!! Ridiculous A fee is acceptable, but too high of a fee is ridiculous"
Cons: "Never again Frontiers"
Cons: "The carry on price and a kid crying the 2 hr flight"
Pros: "The tickets were a great price."
Cons: "The seats are too close together throughout the aircraft. Zero leg room unless your 5 feet tall."
Cons: "There was a flight attendant who was rude and microagressive as well as belittling. Her name tag was turned around, but she was white, blond and a bit older."
Pros: "No problems, easy boarding, quiet uneventful flight"
Cons: "Crew not that friendly. When boarding first flight attendant seemed annoyed that I asked her about my seat. ** there is a fee for about everything on frontier. I would rather pay additional for the tickets on other airlines because the process to check in luggage, get to the gate, and have the Benicia of not being charged for every little thing is WORTH IT. You end up paying more to fly frontier by the time you are done paying for the extras. I prefer the one stop shop. Convenient and no drama."
Pros: "Left on time, arrived early"
Cons: "Long wait for bags"
Pros: "Really competitive price"
Pros: "You got me to my destination."
Cons: "I thought the Stewartists were not friendly at all.. also there is no longer complimentary drinks and snacks.. I already paid 330 for my ticket then they tried to charge for a carry on.. Frontier nickle and dimes its customers"
Cons: "Was not aware of the cost to carry on a bag or pre assign general seats. Would avoid flying Frontier in the future unless no other options were available."
Pros: "Bad customer service, no flight, left stranded in Phoenix with a tired 12yr old,"
Cons: "There was nothing to like"
Pros: "Staff was wonderful on the plane."
Cons: "Everything. Too many hidden fees. Pay for luggage. Extra charge for seating. Pay for drinks on flight even water. With all hidden cost the fare wasn't any cheaper than flying Southwest. Flight delayed 2 hours."
Pros: "I got where I was going without dying. That's the only positive thing about my Frontier experience."
Cons: "What do you call flight attendants who won't look at you or acknowledge you? Is it fair to call them rude if you had no interaction with them at all in your 3.5 hour flight? Since they wouldn't look at me, there was no option to even buy overpriced food or drink from them. The guy sitting next to me had to yell to get their attention. The lady was so annoyed that he asked for water. I've never seen "service" like this in my life. Terrible service. Have to pay for carry-ons but they don't tell you that during booking. Seats don't recline. Flight attendants were frumpy and dirty looking. No entertainment options (I don't know why they ask us to rate it.) No food or drink without screaming and paying an arm and a leg. Speaking of arms and legs, there is nowhere to put yours. My knees were in the seat in front of me. The guy I was sitting next to was bigger than me but not fat at all. He was leaned against the wall and still spilling into my seat. His shoulder was against mine, his arm was on mine, and his legs were too wide to fit in front of his seat so he took up at least a quarter of my leg room. The lady on the other side had an infant in her lap and did the same, except she was hanging out into the aisle. I'm 5'8" and weigh 135 pounds. When I was boarding the plane I was one of the last people on. Coming down the aisle, I hit EVERYONE who washould unlucky enough to have an aisle seat. There was absolutely no room to walk. The miniscule tray tables won't stay up. They didn't just fall down on take off or landing. The one on the back of my seat fell down approximately every 2 minutes. The flight attendant literally yelled at the person behind me because she "wouldn't put her tray table up" for landing even though the problem was mechanical not an unwillingness to follow the rules. I've never seen anything like this. I will never fly this airline again."
Pros: "Typical flight service (which is better than I was expecting), staff was friendly and seemed helpful"
Cons: "Taxi'ing for about 15 min one landing, getting hit with carry-on fees while checking-in, probably would not fly with them again unless I was packing very light, otherwise you should just go with a larger airline and not risk flight cancellations/delays/runway taxi."
Pros: "Relatively quick flight - I slept much of the time. Decent leg room (but I am short). Great price!! I overheard others on the flight with similar prices, I am glad this was available."
Cons: "A loud crying baby was behind me the whole time. Inevitably, he stopped crying just five minutes before the flight ended. Nothing much any one can do about this. I did not think to ask for ear plugs, maybe you have them."
Pros: "It was everything I expected from a no frills airline. The plane we were on was newer even in the back of the plane the leg room wasn't bad. I'm 5'9 just for a reference."
Cons: "The only thing that was a problem you can't check in on your ipad. Being on vacation I didn't have a laptop with me or easy access to one. If I didn't check in before getting to the airport I didn't want to pay any extra for my bags than I needed to."
Pros: "I liked everything except I was a bit surprised to find out it was an extra $40 for my carry-on each way. I would've paid the extra $80 upfront but it seemed a little bit sneaky to add it on when I got to the airport. Otherwise it was a very enjoyable experience."
Pros: "Price, the actual flight itself(flying)."
Cons: "Certain insensitive employees, the enormous price difference from online to face-to-face purchase of bags, needing a gate pass to escort children/loved ones to their gate and not being pre-informed."
Pros: "Boarding was very slow and inefficient. Crew made several attempts to re arrange and did a great job. The crew was always nice. I knew this was a cheap flight, so I didn't expect luxury. I'm fine paying less overall even if it means no pretzels or drinks."
Cons: "Frontier seats were hard shells, not unlike stackable chairs you had in school. Not comfortable at all."
Cons: "Will never fly frontier again. They skimp on everything and try to buckle and dime you."
Pros: "Flights were on time and crew was very friendly."
Cons: "Asking more money to choose your seat and for a carry on is a quite ridiculous."
Pros: "Our flight arrived early"
Cons: "The hidden costs are terrible. We were charged so much for every checked bag, every carry on, for seat selection and for any food on board. The cost for the ticket seemed like a good deal, but all of the hidden costs made it more expensive than it would have been on another carrier."
Pros: "The flight was early"
Cons: "I was charged baggage"
Pros: "I didn't like anything about it."
Cons: "The seats are so uncomfortable and tiny. The tables are only big enough for small tablets. I saw the crew on their phones many times."
Pros: "That I arrived at my destination"
Cons: "That I arrived at my destination with a sore as from the hard seat, cramped legs from being stuffed into a seat made for a legless child, and you would charge me for taking a change of clothes on the plane. Never again!!!!!"
Pros: "Nothing"
Cons: "- Additional fees: after flight was booked we had to pay for our seat, for carry ons AND for checked bags (carry ons cost more, for some reason). - Uncomfortable chairs that did not recline - Tiny tables - I had to hold my laptop on my lap - Frontier "did not do" TSA pre-check in Phoenix"
Pros: "My takeoff and landing in Phoenix were exceptionally smooth and comfortable. The flight attendants on the return flight to SLC were very personable and friendly with a sense of humor."
Cons: "I was not aware that I would be charged for a carry-on bag for each direction of flight. Thank heavens I had extra money in my account."
Pros: "The crew was nice, flight on time and fine."
Cons: "I don't like the fact that you do not recycle, yet you provide goods that are just placed in landfills and will take hundreds of years to decompose. The airports recycle, is it that difficult to make that happen for Frontier? The hundreds of plastic cups, plastic bottles, cans, etc. etc. is mind blowing and is something I pay attention to. I actually took my item back to the airport instead of giving to the crew at the end so I could place the item in the recycle bin in the airport after asking your crew if there was recycling. They said there was no recycling. I also picked up a plastic bottle from another seat on the way out to help clean up since I knew you guys would throw it out anyway. Thanks for considering being more sustainable, eco-friendly, and for thinking about my comment seriously to minimize your airplane's environmental impact. I will pay attention and voice my concerns elsewhere as well - recycling shouldn't have to be done by the consumer, the businesses need to step up and make it happen."
Pros: "Everything but checking my bag."
Cons: "They lost my one checked bag. Still waiting on the next flight to hopefully bring it."
Pros: "It was a cheap flight"
Cons: "I had to pay $40 for my carry on which wasn't explicitly clear when I booked my flight. After paying for carry on, I paid more than had u flown another airline and the seats/amenities sucked."
Pros: "Cheap ticket"
Cons: "I felt nickle and dimes for everything"
Cons: "$80 dollars in hidden fees, they charge for cary on, and there was no indication of that when i purchased my ticket"
Cons: "The charges associated with the flight. No one should be charged for a carry on and for a seat after they have already purchased their ticket, it's ridiculous. I will never fly this airline again."
Pros: "I sat in the front of the plane with a lot of leg room etc. so I don't have much to complain about,but everything was amazing."
Cons: "No free condiments/drinks like American Airlines. Seats are uncomfortable after long flights no matter where you sit."
Pros: "Nothing"
Cons: "We had to pay extra for the carry on."
Pros: "It's was fast and on time"
Cons: "Great"
Cons: "Flight was delayed by 3 hours. The plane came in and sat at the gate the whole time, and no updates or explanation was given by the ground staff as to the cause of delay or the expected time of take off."
Pros: "Nothing, never use them again EVER"
Cons: "NOTHING0 ZILCH"
Pros: "Even after a 2 hour delay on a 7am flight, no effort was made to board the plane any faster. Staff appeared uninterested in customers"
Cons: "Frontier is not a customer friendly company!!"
Cons: "RUDE FEMALE PASSENGER AND HER HUSBAND PICKING/HARRASSING A 15 YEAR OLD MALE (WHO WAS UNACCOMPANIED AND ON HIS FIRST EVER FLIGHT) TO THE POINT WHERE THE COUPLE HAD TO BE MOVED TO ANOTHER ROW....THIS IS AT 5:30AM!!"
Pros: "The flight was on time. Crews were nice. People were also quite nice. Most of the complaints are related to the extra fees on luggage. If you travel without much belongings, this is a good option."
Pros: "Nitrogen/oxygen is free to breathe."
Cons: "if you can stuff everything in your one allotted carry on bag (that’s smaller than other airlines) then great! Otherwise be prepared to pay for everything. Taking your normal sized carry on? Pay. Luggage? Pay. Assigned seat? Pay. Food and drink? Pay. Reclining seat? Forget it. Tray table for food or drink? Keep dreaming. Leg room? Hahahaha! No. In flight entertainment? Entertain yourself. When all is said and done, fly a different airline if you want any of the above."
Pros: "Not much."
Cons: "First and LAST time flying Spirit. Once I had to pay the fee for having a carry on bag, the price came out closer to one of the airlines I should have used instead. The website address didn't even work from my phone, so I had to pay the $65 gate fee for the carry on. The seats weren't comfortable, didn't recline, no cushioning. No inflight entertainment of any kind. During the flight, I got up and went to the front to use the bathroom (which I KNEW was empty) and the staff directed me to use the ones in back. Why? And they never reduced the cabin pressure on the descent! The cabin was still completely pressurized for the higher altitudes well after we touched down. This feels like such an amateur mistake that simply isn't acceptable."
Pros: "early departure, early arrival"
Pros: "It was ok, male flifht attendant super friendly"
Cons: "The seats weren't that comfortable for my husband due to his height."
Pros: "Nothing"
Cons: "Everything"
Pros: "They got me there"
Cons: "Spirit is a horrid airline. The counter people were rude the flight crew was rude and unprofessional. The spoke about passengers that were in ear shot of them. They were just plain rude to customers"
Pros: "cheap"
Cons: "cheap"
Pros: "The price!"
Cons: "The seats are quite small, and the seats do not recline at all. So little leg room for those that are tall, like my husband."
Pros: "Nothing"
Cons: "We arrived at the airport 2 hours before flight time, got ready to check our bag only to be told our flight to Phoenix had been cancelled and there was no replacement flight available until Friday - this was on Monday. No assistance to get us on another airline, just no customer service. We found another flight which cost double our fare and waited 12 hours in the airport— they didn’t even offer to buy us breakfast."
Pros: "The flight crew was very friendly. The plane looked like new and was clean."
Cons: "The seating was a bit cramped, the little kids behind me were kicking the seat the whole trip, and all snacks and beverages were purchase only."
Pros: "the service is good, schedule is on time, and the price is very cheap. It's a good choice for a 2-hours flight."
Pros: "Everything with both flights to and from AZ were smooth with a friendly and helpful staff."
Pros: "Sheap fair plenty of leg space"
Cons: "Seats not too comfortable but for a short flight it's ok"
Pros: "The flight attendants were friendly and funny. It made for a great experience on the plane"
Cons: "No free water. Snacks and drinks were very pricey. Seats had no recline feature."
Pros: "The flight attendants were friendly"
Cons: "2 hours delay and not provided any explanation and very few updates during the wait. No offer of compensation, even the full charge for luggage was still requested. The lengthy solicitation of the credit card was tacky."
Cons: "I wasn't told 1 bag would cost additional $65 @ airport!"
Cons: "The baggage fee for carry on baggae is very high."
Pros: "No entertainment on the flight and we didn't have any food. Flight was a direct flight. Everything went smoothly. Actually arrived a little earlier than scheduled. Didn't have to wait too long for our luggage."
Pros: "Good Pilot good Landing smooth ride"
Cons: "This crew was also unprofessional I did not feel comfortable with them"
Pros: "nothing"
Cons: "They delayed the flight on purpose such that they would not have to rebook on other airlines. As soon as the last flight to the destination left on another airline, they cancelled the flight and refused to rebook on any other airline. I got rebooked 2 days later. The cancellation was due to a lack of a crew."
Pros: "I liked the price. I got home safely."
Cons: "The flight attendants were straight up rude from start to finish. The seats didn't recline, meh. The A/C was non-existent and it was too warm. The flight was delayed for departure and once we landed, we spent almost an hour on the tarmac waiting for a gate to depart."
Pros: "Low fare"
Cons: "Departure and return flights were both delayed. Baggage fees are excessive.Not sure the low fees are worth it."
Pros: "Nothing"
Cons: "Every thing"
Pros: "Price"
Cons: "I was sick all morning. Got there at 1130 for a 1208 flight. No sympathy. Has to spend money for another one way ticket."
Cons: "Worst airline ever"
Pros: "Seat was comfortable"
Cons: "It cost more for a carry on bag than a checked bag."
Cons: "Crowed seats, no complimentary water or coffee."
Pros: "Flight attendant humor."
Cons: "Hidden fees costing $100, terrible comfort, and the worst customer service. Avoid."
Cons: "It is impossible to pay for bags at booking at the lower rate. Couldn't get on line payments to work. But they kept trying to get money- for seats, for better boarding, for insurance- it never ended!!! Had to call. They wanted to charge me $100 for 2 bags since they helped me. Supervisor did nothing. Told me I should have booked directly with Spirit to pay for bags at lowest rate. So why do they offer themselves to search engines like Kayak? It all amounts to hidden costs and terrible service. Flight was delayed understandably because of weather in Denver. BUT, since the only way to make our connection was not to get our luggage, they refused to get our luggage on another flight on our connecting airline. Said we'd have to figure it out with Fed Ex. No solutions or help offered. I will never fly Spirit again."
Pros: "Nothing"
Cons: "Bait and switch business model. $100 for a carry on, seats don't recline, no refreshments, and the cabin was sweltering hot. Miserable experience."
Pros: "Cheap ticket."
Cons: "Pricey carry on charge"
Pros: "Flight crew was very friendly. Boarding process was efficient."
Cons: "Leg room is very cramped. Both departing and arriving flights were delayed by at least an hour, with very little prior notice."
Pros: "I didn't die? That's a good thing I guess."
Cons: "Tiniest tray table I'd seen (smaller than a tablet), only the first 2 rows reclined at all, the fixed seats and small tables made them very cramped."
Cons: "Gate agent, hidden airline fees, no entertainment options, airline charged for water"
Cons: "the credit card sales pitch was really loud and long."
Pros: "Staff was great!!!"
Cons: "Would like a little more room in the seats.. don't really like eating my knees for lunch.. paying for a seat after already paid for your flight is ridiculous.. also, paying $50.00 for check bags and $55 for a carry on is outrageous.. oh and 1 more thing.. no free beverages.. Really.. Come on.. $3.00 for a Coke or water??? Really??? The flights are cheap, but they stick it to you with there added fees as mentioned above!!!"
Cons: "Not on time"
Pros: "Flight was short and comfortable"
Cons: "Luggage fees was more than the ticket for one carry on bag"
Pros: "It was exactly what you expect, comfortable enough to get from point A to point B"
Cons: "There was nothing that bothered me"
Pros: "Ummm, getting off of it was my favorite part"
Cons: "Not allowing me enough characters to say what I didn't like"
Pros: "Flight was on time."
Cons: "Having to pay extra for my bag."
Pros: "The only thing good about this flight that it was on time and no issues with their customer service."
Cons: "Tickets are cheap but they get you with baggage costs, paying to select your seat and other silly fees. The seats are the most uncomfortable I have experienced. Normally I can sleep on planes but I couldn't for the life of me because how hard the seats are. I will not fly them again."
Pros: "Nothing"
Cons: "Everything was just a disaster. Don't do it."
Cons: "Our flight was ready to depart when it was delayed for an issue that would only take about "20 minutes to resolve". We sat on the Tarmac for over an hour with no updates, in the middle of the afternoon during Arizona's summer. Finally, the allowed us get off the plane, where we sat in the terminal for hours and hours with little to no updates. Eventually, they cancelled the flight, leaving the passengers s rambling to find a new airline to book an entire new flight. I will never fly with them again!"
Cons: "Did not travel on flight due to delay in Dallas. The flight from Los Angeles had left by the time my flight from Dallas had landed."
Cons: "That my flight got cancelled & I did not get informed until I got there & they wanted me to wait in an hour wrong like to get my refund"
Pros: "Crew was great"
Cons: "Everything was great."
Pros: "Delayed 2 hours waiting for paper work really????"
Pros: "I was not aware you had to pay for a carry on, or that I had to pay more just to insure I would be sitting next to my husband"
Cons: "Thinking I got a good deal but having to pay more before I could even check in to board the plane"
Pros: "Was a smooth, quick flight."
Cons: "Delayed a little over a half an hour."

Book cheap flights from Phoenix to Seattle

Recent round-trip flight deals

4/29Sat
1 stopSpirit Airlines
8h 39mPHX-SEA
5/3Wed
1 stopSpirit Airlines
10h 26mSEA-PHX
$79
5/3Wed
nonstopFrontier
3h 27mPHX-SEA
5/6Sat
nonstopFrontier
3h 04mSEA-PHX
$80
4/22Sat
nonstopFrontier
3h 27mPHX-SEA
4/29Sat
nonstopFrontier
3h 04mSEA-PHX
$85
5/3Wed
1 stopMultiple Airlines
7h 09mPHX-SEA
5/6Sat
nonstopMultiple Airlines
3h 04mSEA-PHX
$86
5/2Tue
1 stopSpirit Airlines
7h 09mPHX-SEA
5/10Wed
1 stopSpirit Airlines
13h 27mSEA-PHX
$87
4/19Wed
nonstopFrontier
3h 27mPHX-SEA
4/22Sat
nonstopFrontier
3h 04mSEA-PHX
$88
4/19Wed
nonstopFrontier
3h 27mPHX-SEA
5/3Wed
nonstopFrontier
3h 04mSEA-PHX
$90
4/29Sat
1 stopSpirit Airlines
8h 39mPHX-SEA
5/3Wed
1 stopSpirit Airlines
10h 26mSEA-PHX
$91
5/3Wed
nonstopMultiple Airlines
3h 27mPHX-SEA
5/9Tue
1 stopMultiple Airlines
12h 42mSEA-PHX
$92
4/19Wed
nonstopMultiple Airlines
3h 27mPHX-SEA
4/25Tue
1 stopMultiple Airlines
10h 28mSEA-PHX
$93
4/11Tue
1 stopMultiple Airlines
7h 09mPHX-SEA
4/15Sat
nonstopMultiple Airlines
3h 04mSEA-PHX
$96
4/12Wed
1 stopSpirit Airlines
7h 09mPHX-SEA
4/16Sun
1 stopSpirit Airlines
12h 51mSEA-PHX
$97
4/29Sat
1 stopMultiple Airlines
4h 29mPHX-SEA
5/6Sat
nonstopMultiple Airlines
3h 04mSEA-PHX
$98
4/22Sat
nonstopMultiple Airlines
3h 05mPHX-SEA
5/2Tue
1 stopMultiple Airlines
12h 51mSEA-PHX
$99
4/19Wed
1 stopMultiple Airlines
5h 05mPHX-SEA
5/3Wed
nonstopMultiple Airlines
3h 04mSEA-PHX
$100
4/12Wed
1 stopSpirit Airlines
9h 27mPHX-SEA
4/15Sat
1 stopSpirit Airlines
12h 51mSEA-PHX
$101
4/22Sat
1 stopSpirit Airlines
4h 29mPHX-SEA
4/24Mon
1 stopSpirit Airlines
10h 26mSEA-PHX
$102
4/12Wed
1 stopSpirit Airlines
9h 27mPHX-SEA
4/15Sat
1 stopSpirit Airlines
12h 51mSEA-PHX
$103
4/29Sat
nonstopFrontier
3h 27mPHX-SEA
5/3Wed
nonstopFrontier
3h 04mSEA-PHX
$104
4/21Fri
nonstopFrontier
3h 27mPHX-SEA
5/5Fri
nonstopFrontier
3h 04mSEA-PHX
$120

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/3Wed
1 stopSpirit Airlines
7h 09mPHX-SEA
$41
5/3Wed
1 stopSpirit Airlines
7h 09mPHX-SEA
$42
5/10Wed
1 stopSpirit Airlines
12h 55mPHX-SEA
$49
4/24Mon
1 stopSpirit Airlines
14h 11mPHX-SEA
$51
4/22Sat
1 stopSpirit Airlines
4h 29mPHX-SEA
$52
4/11Tue
1 stopMultiple Airlines
12h 43mPHX-SEA
$53
4/18Tue
1 stopSpirit Airlines
17h 33mPHX-SEA
$60
4/21Fri
nonstopFrontier
3h 27mPHX-SEA
$61
4/11Tue
1 stopSpirit Airlines
14h 11mPHX-SEA
$63
4/28Fri
1 stopMultiple Airlines
12h 13mPHX-SEA
$66
4/10Mon
1 stopMultiple Airlines
12h 13mPHX-SEA
$68
4/10Mon
1 stopMultiple Airlines
12h 13mPHX-SEA
$69
4/20Thu
2 stopsFrontier
24h 47mPHX-SEA
$74
4/11Tue
nonstopAlaska Airlines
3h 12mPHX-SEA
$77
4/21Fri
nonstopDelta
3h 16mPHX-SEA
$79
4/12Wed
nonstopFrontier
3h 27mPHX-SEA
$80
4/17Mon
1 stopFrontier
19h 13mPHX-SEA
$88
4/11Tue
nonstopAlaska Airlines
3h 12mPHX-SEA
$89
4/11Tue
nonstopAmerican Airlines
3h 05mPHX-SEA
$95
4/11Tue
nonstopDelta
3h 16mPHX-SEA
$99

Search by stops

Search by airline

Search by price

Phoenix - Seattle Flights

Departure:

Phoenix (PHX)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Phoenix

Cabin classes:

$399
$1,698
$343
$135

Browse origins:

Browse destinations: