Find cheap flights from Portland to Shannon

PDX - SNN

Find cheap flights from Portland to Shannon

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Portland (PDX)
Shannon
Tue 1/26
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Good to know

Low season

November Best time to beat the crowds with an average 39% drop in price.

High season

December Most popular time to fly with an average 18% increase in price.

Average price round-trip

$981 (avg. price over the last 2 weeks)

Good deal round-trip

$782 or less

Good deal one-way

$693 or less

When to book flights from Portland to Shannon

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $693 or less one-way and $782 or less round-trip.
  • High season is considered to be November, December and January. The cheapest month to fly is November.

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Top 3 airlines serving Portland to Shannon

Scores according to KAYAK customer reviews

7.2
American Airlines
Overall score based on 45,052 reviews
7.5
Boarding
7.1
Comfort
7.8
Crew
6.8
Entertainment
6.7
Food
Airline reviews

Cons: "Seats were VERY SMALL and worse, they were like sitting on a wood bench. Many passengers were grumbling about horrible the seats were. Unacceptable for a 5-1/2 hour flight."

Cons: "Food was what you’d expect on a plane, wine and beer service was nice. No real entertainment unless you could see the screen on the roof. WiFi was kind of expensive. Cabin crew were very nice"

Pros: "Crew seemed friendly and considerate"
Cons: "Flight from SLT was delayed by weather, so our flight left almost one hour late."

Pros: "The crew did a great job."
Cons: "Seating is very uncomfortable."

Pros: "amazing seat and awesome crew couldn't ask for more"

Pros: "The crew was fine"
Cons: "The worst international flight I’ve been on in years. No seating room. The movie was shown on tiny screens in the center aisle (which I didn’t think existed anymore) and was barely audible and tuned in and out. The plane also lacked air conditioning. A truly awful experience."

Cons: "Bigger seat"

Pros: "The free movie"

Pros: "WiFi"
Cons: "Had to take shuttle to other side of airport which took over an hour. Very very poor experience. Also, Seats had no room pull down table."

Pros: "The flight crew was terrific, and the pilot provided good information on the cause of the delay, and expected deoarture and arrival."
Cons: "We were 80 minutes late leaving Portland. Fortunately I did not have a connecting flight and the late arrival was a nuisance and not a problem."

Pros: "The amount of people on the flight was nice,for everyone was able to spread out on the entire plane."
Cons: "The turbulence during the whole flight was terrible."

Pros: "Landed safely and on time. Crew was nice."
Cons: "Cramped. Older plane missing USB plugs. Entertainment requires an app. Bathroom door still has ashtray. Should have been cheaper for what I got which was a regular ticket for a 5'8" 160lb person."

Cons: "The Crew Tried to take us from our seats so they could sleep in our seats. They tried to relocate us to the last row where the seats don't recline.they were very abusive and rude, we have it all on a body Cam and we'll lodge formal charges against American Airlines once we return to the States. Worse Trip EVER."

Pros: "Quick boarding"
Cons: "Flight attendant was very brash. Guy next to me smelled like an ashtray which made everything worse."

Pros: "N/a"
Cons: "Flights from PDX to BOS cancelled. Rerouted to PHX. All flights out of BOS, DC, Philly cancelled. I missed my Habitat for Humanity trip, not getting any refunds on flights or hotels. Out thousands and no one is helping me."

Pros: "A nice uneventful trip"

Pros: "TSA PRE√ went fast and easy."
Cons: "Seats are miserable to try to sleep on an overnighter."

Cons: "Seats smaller than before."

Pros: "Flight was one time. Flight crew was also polite and attentive."
Cons: "Plane was more cramped than the flight to Portland, even though both planes were 737's."

Pros: "Overall solid flight"

Pros: "Nice flight once we finally boarded!"
Cons: "Flight was late causing me to run for my connecting international flight in LAX."

Pros: "Entertainment Captain Food"

Pros: "I liked the inflight entertainment."
Cons: "The flight attendants going down the middle aisle and bumping me as I had an aisle seat."

Pros: "Entertainment and meals"
Cons: "Crew could of been friendlier"

Pros: "Once in the air things went well."
Cons: "We spent more time on the tarmac than in the air. The plane was unusually noisy on landing. There was little room"

Pros: "The movies were great. Staff wonderful, accommodating."
Cons: "I absolutely hated the flight from pdx to Minnesota. Plane felt unsafe, smelly & generally scary."

Pros: "Very efficient crew. Pleasant enough"
Cons: "Bumpy flight, obviously not something that could be helped (tho the pilot came on and said he was hoping to find a smoother altitude, greatly appreciate him trying!)"

Cons: "Holding pattern over Dallas for 45 minutes."

Pros: "It was not a finnair flight.... I actually flew on American Airlines. The flight was a little bumpy. The captain did a great job of keeping us informed of things going on! The crew were awesome!!!"
Cons: "I didn't like that up until the day before I thought i was flying Finnair and was trying to checkin with finnair onlt to find out it's American Airlines i was flying. Very confusing but I figured it out"

Pros: "The in flight entertainment was perfect, new, and relevant. I also had an empty seat between myself and another passenger so my legs weren't as cramped."

Pros: "Ticket agents at all airports were helpful and very considerate."
Cons: "We were not able to print our boarding passes the day before as expected per the website and purchase docs for the tickets, despite providing passport numbers (several times) and Global Entry registrations. Had to go to a ticket desk at first departure and third departure points to have them printed, with no explanations given. Also not allowed to choose our seats for the third leg. Food was barely edible. Paid extra for roomier seats on one leg, making it more comfortable, but were extremely tight on another leg which had many empty seats scattered throughout the cabin. Cabin attendants seemed more interested in pushing items that generated revenue than providing the ones that came with the ticket (which is never cheap to begin with)."

Pros: "Nothing"
Cons: "Every single bit. Was horrible and the crew was just aweful."

Cons: "Due to mechanical issues our 8am flight kept getting delayed in 30 minute increments until around 9:45 when the front desk attendants told us the necessary part had to be driven from Seattle and wouldn't be available until noon, and that their was no certainty the part would work, and that we should make other arrangements. So we did, but their earliest we could get us into Chicago was 9:30pm (original arrival was 2pm). We booked the arrangements only to find out that our original flight took off at 10:55 and American didn't even attempt to contact us. The cherry on top was that our flight (which was indirect through SFO) got delayed and we're now going to miss our connection in SFO. So currently looking at 10:30pm arrival in Chicago."

Pros: "Friendly staff ice landong"
Cons: "No leg room & I am only 5'6' & slim."

Pros: "."

Pros: "Timeliness"
Cons: "Nothing"

Pros: "Entertainment and great beverage options"

Pros: "Comfort, convienience. Great service. Will fly again."

Pros: "The switch up w amaerican air Can't find flight for check in no one is on the phone over night. Finally figured out the prob. Did like amer air And all the shuttling. Chaos"

Pros: "Comfortable seats"
Cons: "Lack of entertainment and no free WiFi. Also food choice was not the greatest"

Pros: "The flight attendants were super nice. The flight went smoothly."
Cons: "Let's get some tvs on the backs of the seats!"

Pros: "Pretty comfortable"

Cons: "Numerous delays and disappointments. Two delays before boarding. Another long delay after boarding waiting for paperwork to be completed. Long taxi period. Waited over half hour for baggage claim conveyor to start rolling."

Pros: "The in flight attendants were very helpful. They never got upset with anyone when I got walked passed my seat while boarding and had traffic backed up while boarding.Such a pleasant flight. I would rather fly American Airlines than spirit, United."
Cons: "The only thing I can say I didn't like was the vents did not blow the air condition hard enough. .."

Cons: "Flight was delayed"

Pros: "The flight, attendants, timeliness"
Cons: "Unable to check in unless paying extra for only available seats. At DFW was scolded for nit checkibg in sooner and was assigned "the last seat" because of overbooking. Same today trying to check in JAN to DFW. Must pay extra or wait untill get to airport.Reserved months ago. Assign seat upon reservation!"

Pros: "Friendly staff, great service, and how since it was a night flight the lights were off."
Cons: "There was nothing I didnt like"

Pros: "Went smoothly including tsa"
Cons: "Flights aalways toi close together. 1st flight arrived early and still just made boarding for second flight"

Pros: "Always too cramped. I wish I never had to get on another plane."

Pros: "The meals and the consistent drink service was great"

Pros: "Flight was on time and clean."
Cons: "They missed by special meal once."

Pros: "Friendly staff"
Cons: "Flight was delayed 2 hrs"

Pros: "the entertainment and food was good"
Cons: "our flight attendants were mostly absent -- the other side of the aisle had much more attentive attendants"

Cons: "Freezing in the cabin that morning."

Pros: "Very good on time, comfortable."

Pros: "The flight was average. Small plane, short flight, no food or beverage service. Pretty average and nothing to complain about."

Cons: "The food. Skip the cup of noodles."

Cons: "flight was cancelled. poor communication."

Pros: "its was smooth"

Pros: "Great value for the money, friendly staff."

Pros: "Nothing"
Cons: "No notification of 2 hour delay. Missed connection with 2 wrong rebooking on departed flight. No ticket to clear customs and no Air Canada help to rebook correctly."

Pros: "I loved the entertainment options, especially that we could pull up the map & see where we were."
Cons: "Online information was confusing & made it sound like we had to pay for our carry on, so we didn't bring a carry on (just personal item). It needs to be more clear."

Cons: "I booked this flight a couple months ago to find no seat assignment which should be booked at Chechen but was not. Then I was given the back seat against the wall which does not recline. There were standby people on the flight who got much better seating than I. I seemed to get the last consideration. I am treated much better on other airlines with much less early booking. also later after take of it was made known to me there were empty seats further up in the cabin. When I email Air Canada they said they would get back to me within 30 days about my concerns."

Pros: "Crew was lovely"
Cons: "Flight was delayed and everyone missed their connecting flights. Air Canada put us on British Airways instead but did not inform them and when we went to check in at the desk they did not have us in the system which stressed everyone out. We eventually got on the plane but I had to sit in the very uncomfortable middle seat rather than in my chosen seat by the window."

Pros: "Crew was kind, helpful, respectful."
Cons: "Not very comfortable."

Pros: "Not much to compliment on. The flight did offer a great selection of movies to choose from during the trip."
Cons: "Constant flight delays. We were left on the runway for two hours before taking off due to an issue with the laboratory. The plane was overpacked, not allowing much personal space even in the aisle seat. People were sleeping on the floor and some in the aisles, creating a tripping hazard to those wanting to stand and stretch or walk to the restrooms. Those who attempted to sleep in their seat found that the seats were very uncomfortable and had very little to no leg room. When it came time to land at our destination, we ended up having to circle the airport for an additional 35 mins waiting for the terminal to free up. It was a very long 10hr flight that even the nice selection of movies to choose from couldn't help. Terrible flight experience, Canadian Air has really gone down hill."

Pros: "Nice crew- efficient boarding"
Cons: "One bathroom for all of economy. Poor snacks. No chance to get electronic boarding passes"

Cons: "Flight cancelled. No reason. Said Pearson runway repairs"

Cons: "The aircraft was very old, without entertainment. Most of the crew were unenthusiastic. The food was less then average. A very different experience then flying from Toronto to London the week before, so quite disappointing."

Pros: "Flight was quick, service was great, clean lavatories."
Cons: "Would've appreciated more legroom, but the same can be said for just about any airline."

Pros: "Crew was friendly"
Cons: "Had the flight delayed by 3+ hours."

Pros: "The flight was nice and smooth and the crew members were so nice."

Pros: "This was my first time using Air Canada and I was so excited after seeing all of the wonderful photos of this luxurious aircraft! Upon boarding, I sat patiently as I waited for my boarding group (3) to be called. Once my group was called up, i waited in line next to board while to the right of the line therw was an inpatient mob of group 4's & 5's eagerly waiting to board. The announcement of group 4 and 5 boarding sent the mob into a frenzy and they shoved their way in front of all of us group 3's knocking me down. The Air Canada staff did not assist nor did they do anything to regulate groups and ensure everyone's safety. I have never been more disappointed in an airline. Im fine now in case anyone cares."
Cons: "This was my first time using Air Canada and I was so excited after seeing all of the wonderful photos of this luxurious aircraft! Upon boarding, I sat patiently as I waited for my boarding group (3) to be called. Once my group was called up, i waited in line next to board while to the right of the line therw was an inpatient mob of group 4's & 5's eagerly waiting to board. The announcement of group 4 and 5 boarding sent the mob into a frenzy and they shoved their way in front of all of us group 3's knocking me down. The Air Canada staff did not assist nor did they do anything to regulate groups and ensure everyone's safety. I have never been more disappointed in an airline."

Cons: "Taxied to runway, but had to go back to terminal due to one seat not staying in upright position. Flight was about an hour late then."

Cons: "Seats are small and these are the regular seats"

Pros: "Crews were very nice. I also liked biscuits."
Cons: "Ground staff was not as nice as the crews."

Pros: "Preflight very convenient."
Cons: "Not able to see my booking on Air Canada, agent was less than helpful. Food okay, except breakfast was a small cold muffin."

Pros: "I liked the flight crew. They were very friendly and attentive."

Pros: "Crew were reasonably patient, but rather impossible to please passengers with type of flight and discomfort."
Cons: "One bathroom for all of the plane? Perhaps 1st class (tiny) has its own bathroom, but otherwise, the aisle was 10+ people in-line for the ENTIRE flight, as 1 bathroom. Really miserable for all concerned. Seats are too tight, entertainment system works only some of the time, seats old and uncomfortable. Did not seat family together (flight full). Overall, one of the worst long-distance flights I have ever had. Should not fly this kind of plane with this many people and not enough facilities."

Pros: "Plane was clean and offered a nice variety of food and snacks"
Cons: "Every flight was late boarding and arriving."

Pros: "The plane, which was American-made. Smooth ride in the air, no baggage issues."
Cons: "The crying children in front of me, the hour and a half delay, and the late dinner service. Dinner came at 8:30, after staring at those with special meals eat and finish an hour before everyone else, they should wait with the rest of us. Breakfast was pretty lackluster. Their online app and check in is awful- they should hire new coders and UX designers to increase functionality."

Pros: "Preferred seating was comfy"
Cons: "2 couples travelling together were assigned 4 seats I opposite ends of plane, no two together and no chg option. Discovered that seat next to my spouse was just assigned minutes before boarding. CSR at AC on phone was rude and unhelpful, boarding staff offered no help either."

Pros: "comfortable seats and friendly staff"
Cons: "no problems with this flight"

Cons: "1 bathroom for entire coach class? Consistent line of 4-5 and sitting in the back meant someone standing next to me. Turbulence mandated seating generated overt unhappiness from many passengers."

Pros: "Wonderful crew, enjoyable flight!"
Cons: "Neighbor on flight was clueless to the rest of the world & left light on, video on, and used me as a pillow"

Pros: "I liked the fact that the seats had plenty of leg room as I am tall and hate having my knees hitting the seat in front of me."
Cons: "Flying from US to Canada was a challenge because of all the customs requirements. But,. better safe than sorry . This four hour flight did not even offer pretzels"

Cons: "They try to board by groups but unfortunately they get the entire plane trying to stand in there group lines and don't load anyone for 15 to 20 mins. It congested all the walkways and people just change to the shortest line"

Pros: "The flight was excellant. Something that horizon air needs to aspire too."
Cons: "Nothing"

Pros: "Great crew and good wine!"

Pros: "Generous seating. Decent food."

Cons: "Was not told a transit visa was necessary to fly through Canada. Denied boarding in Nairobi on way over and had to book on another airline."

Pros: "Great service, on-time flight."
Cons: "No complaints"

Pros: "Nothing"
Cons: "Checking in was horrible. Lady at the counter was not helpful at all. Although my main carrier for the international flight allowed 2 checked baggage free of charge, Air Canada only allowed one free baggage and 2nd baggage for $100 for the connection."

Pros: "Glad for this new route. Will make Europe easier to access from PDX."

Pros: "Most things where fine. Slight delay in boarding but still made our connection."
Cons: "Tried to signal stewards for another beverage but got no response. Lack of customer service."

Pros: "The plane was clean and comfortable."
Cons: "It's a long flight, unless you are flying first class it's not going to be amazing."

Pros: "Clean, quick flight."
Cons: "cramped, not enough carry-on room."

Cons: "The baggage checkin was awful. The boarding check in was awful. The security check in was awful. The customs check in was awful. Understaffed and inefficient. The baggage conveyor backed up. The same staff that checked in our baggage was the same person who then ran upstairs to check us in at gate and it was all hand done and not computer scanned. No check in kiosks to make ticket checkin faster. Lines were all backed up and I barely made flight and my connection. Many either missed flights it connection or plane was held up to get people to flights. The lady at customs check in was good trying to handle the back ups but the shrine was severely backed up and understaffed. The pilots made good time and handle the turbulence well. Staff on board did well with timing of food and drinks Entertainment on board was awful. Didn't find out until on board on 8 hour international flight that needed an iPad with downloaded app for entertainment and therefore I had three kids that had nothing to do. Never did I have such an issue with an international flight that was so poorly managed. So disappointed."

Pros: "All was good."

Pros: "Flights were all on time. Crew was lovely."
Cons: "The usual: hard to get in and out to go to bathroom. I would have liked to sit in emergency row as I noticed few people were in those seats but I didn't know how to have secured those seats so I just sat where I was assigned."

Pros: "Fast. Easy. Gave me free seat with more room"
Cons: "Such a tiny plane.... crowded. Made you pay for wifi."

Pros: "Crew was fine, very friendly"
Cons: "Small sear back pockets, having to pay extra to take a carryon onboard!"

Cons: "Both flights were late, seriously late."

Pros: "the soda water was good."
Cons: "It was late, as almost all United flights are. sad."

Cons: "Plane departed 2 hrs late,taxied 40 min in San Fransisco for lack of access to gate"

Cons: "The entertainment selections were awful for such a long flight. Also there should be meals provided for such a lengthy flight."

Pros: "I missed the gotdamn flight"
Cons: "I missed"

Pros: "PenAir computer systems were down in Denver, so flight was about 30 minutes late. Crew was good tho."

Pros: "The fact that we made it alive."
Cons: "Everything else. Take a sleeping pill an hour before the flight and sleep as soon as you sit down. Or else you will need a miracle to survive the boredom of the flight."

Pros: "It was a new plane ...but the same old rules..."

Cons: "Terrible uncaring old waitresses overweight, no room for luggage no room for even walk in the plane, kept asking to turn off devices when it is well known devices don't cause any problem. No free internet. Old tired planes, terrible third world airline."

Pros: "Efficient boarding, smooth flight"
Cons: "Seat was hard and uncomfortable, air was stuffy, little fan wasn't blowing enough"

Pros: "Didn't crash"
Cons: "Get my to my destination on time. I missed my connection and will be 5 hours late to my destination, missing most of Father's Day"

Pros: "The price"
Cons: "The leg room & the service"

Cons: "Paying $25 to check a bag each way just to be able to do early check in on the app. I only had a carry on. Total scam. Shady AF. Also the United entertainment in the app does not work with Bluetooth headphones on an iPhone."

Pros: "Left on time and arrived early! Yeah"
Cons: "They could have announced which carousel our luggage would be found."

Pros: "At least it wasn't the next day?"
Cons: "I booked A flight from in Oregon to Tucson Arizona but the layover in San Francisco . The flight from Oregon to California was delayed by an hour and a half which caused me to misconnect. United didn't offer me anything, not even a sorry. Terrible service."

Pros: "It was spacious."
Cons: "No free Wi-Fi."

Pros: "WIFI allowed access to imessage"
Cons: ""Free" movies and TV didn't work"

Pros: "Flight was fine and flight attendants were nice. Employees at the gate were less than helpful."
Cons: "United booked too many flights when they knew the destination was limiting arrivals. This delayed our flight by 3 hours. Communication to the travelers was poor and misleading."

Cons: "Multiple delays"

Pros: "Flight was great"

Pros: "On time"
Cons: "No Free baggage no free food"

Cons: "Neither my fiancée nor I were particularly fond of the inflight sauna. I had try dry my sweat soaked shirt in the bathroom while waiting to make my connection. If the flight had been any longer I would have opened the door to let a breeze in."

Pros: "Nothing"
Cons: "United changed my 10 am reservation to 6:40 which meant, in addition to getting up at 4 am, missing a great free breakfast at my hotel, that I had to spend $55 on a cab rather than take public transportation to the airport. Further more, the 4+ hour layover at Newark (horrible terminal) led to 6+ hours. Arrived home at the end of an 18 hour day barely functioning."

Pros: "Friendly, comfortable service"

Cons: "Two hour delay because of scheduled runway maintenance in sfo. If it's scheduled, then why didn't United plan around that"

Cons: "Plane was hot no air and super uncomfortable"

Pros: "The crew kept us informed of the delays"
Cons: "Sitting in the plane on the runway for an hour"

Pros: "The plane was new and clean"
Cons: "The new seats where not very comfortable one crew member was very nice the other two were curt when dealing with the passengers or moving the cart up and down the isle."

Cons: "Leg room is very limited."

Pros: "The sunrise"
Cons: "I was on the wrong side of the plane!"

Pros: "Iad to Boston on board attendants"
Cons: "Flight timing excellent"

Cons: "Crowded"

Pros: "Shortest route, friendly staff."
Cons: "Flight out of Little Rock delayed 2.5 hrs dur to maintenance issues, resulting in missed connection and 4 hr delay getting to final destination."

Pros: "I was very happy with the attendants. Very friendly and helpful. The crew was very professional and informative."

Pros: "Flight was n time, boarding was fast and efficient."

Pros: "Quick to board"
Cons: "Flight was delayed a bit"

Pros: "Personable crew."
Cons: "Middle seat"

Pros: "The flight was late, overbooked, and there was a weight problem that caused further delays."
Cons: "Delays, comfort, and rudeness of the flight attendant. It was just a horrible experience all around!"

Pros: "Efficient crew"

Cons: "They made me get off the plane because I could have my lotion on the plane and wanted to check for anything else"

Pros: "my first time flying with United was exceptional. it is an overall professional airline. from on time seating to a more luxurious cabin my flight from Portland to San Francisco could not have gone better."
Cons: "n/a"

Pros: "Very unhappy employees. I work at Nordstrom so maybe my expectations are a bit high when it comes to customer service, but if I owned united airlines I would be ashamed of the way United employees treat people. I paid an extra 300 than I had to to get to Hartford Connecticut at the time I chose when purchasing the ticket. Every plane was delayed. EVERY FLIGHT by at least an hour. I missed my connections and was rebooked twice. the average joe customer service lines were ridiculous with the separate priority line having first dibs. The first customer service man I met with was helpful and kind. With the exception of that man and one flight attendant on my trip back to Portland, every employee was indifferent, condescending and in some cases, actually mean. I say that seriously! (I can't believe it either). I am not a difficult person to get along with and I never showed upset despite the many mishaps I encountered on this trip. Customer service is so important and could have made up for the obvious poor planning and lack of communication by which united airlines functions. Unfortunately, I would rather fly any other airline if given the choice after this trip. Even spirit (and let me tell you, I've only flown spirit once and there is a good reason for that). So disappointing. I am upset over my experience and again, will avoid this airline at all costs in the future whenever possible."
Cons: "Above."

Pros: "Flight was uneventful. Went smoothly."
Cons: "Seating wa very cramped. Long legged people were shoving their knees into my husband's back and I was unable to stretch my legs. Also, there was not a free gluten free snack available."

Pros: "I like the small size. The food and drink are so minimal it's hard to rate. The flight attendants were courteous and efficient. The flight was on time."
Cons: "The bathroom was more "used" than usual..."

Cons: "There was no food for such a long flight"

Pros: "Plane was 3 hours late missed my connection. Was due to poor maintenance of the aircraft. Will not fly United again"

Pros: "Nice terminal"
Cons: "United is chronically late"

Read more about American Airlines
COVID-19 information

Safety measures for airlines flying from Portland to Shannon

Airlines flying from Portland to Shannon 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 Portland to Shannon

Mandatory masks

Masks required on board, masks provided on flights from Portland to Shannon

Social distancing seating

Middle seats unavailable to book on flights from Portland to Shannon

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Portland to Shannon

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