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Find cheap flights from Seattle to Ireland from $255

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

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Best Ireland Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Dublin
Dublin1 stop$437
Shannon
Shannon1 stop$563
Cork
Cork2 stops$613

Good to know

Low season

January

High season

September

Cheapest flight

$255
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Seattle to Dublin

FAQs - booking Ireland flights

  • Are there lounges at Paine Field Airport (PAE)?

    Yes. The lounges include American Airlines Admirals Club, US Airways Club, Alaska Airlines Board Room and United Red Carpet Lounge. They are located at various terminals within the airport. They offer snacks, drinks and a resting place as you wait for the departure time of your flight.

  • Are there facilities for pets at Boeing Airport?

    Yes. There is a pet-relief area located within the airport. You need to consult the airport on your pet's security screening to avoid inconveniences. There is a grassy area where your pet can play. You are required to be with your pet for it not to interfere with other travelers.

  • Does Shannon Airport offer ground transportation?

    Yes. There is a taxi available at the Arrival hall. This private means of transportation offers you a ride at a pocket-friendly rate. Bus service is also available to ensure that several people are accommodated. It operates from the airport to the city center at intervals of 15 minutes.

  • Is there a gallery at Knock Airport (NOC)?

    Yes. An aviation gallery is available at the airport to take care of the aquatic life. It is located within the airport to ensure that departing travelers have some time at the airport. You can access the service regardless of the class of your flight.

  • How does KAYAK find such low prices on flights from Seattle to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ireland from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ireland with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ireland from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ireland

  • Morning departure is around 18% cheaper than an evening flight, on average*.
  • Lake Union Airport (LKE) offers facilities to travelers with limited mobility. The airport has a wheelchair shuttle service available 24 hours a day. You must book online for the service to avoid any inconvenience on arrival at the airport. The airport has ramps to ensure there is the ease of movement using the wheelchair.
  • Lake Union Airport has a lactating room that is relevant to breastfeeding mothers. You can freely and privately breastfeed your baby with no interference from anybody. A comfortable sitting area gives you peace and comfort as you breastfeed your baby. Power outlets are available to ensure you can pump milk for your baby for later use on the flight.
  • Boeing airport (BFI) offers parking facilities to departing travelers. Several parking lots are available on the airport grounds at different rates. Airline passengers parking in parking lot C should exit the airport and turn left. Passengers can also take a courtesy shuttle bus to the C parking lot or walk for about five minutes to get there from the baggage claim area.
  • Shannon Airport (SNN) offers car rental services to arriving travelers. Avis, Budget and Dooley help in facilitating you to your destination. The services are available online. Therefore, you need to book. The service is offered until very late to ensure all the travelers access the service. The charges offered are pocket friendly to all travelers.
  • Dublin Airport (PUB) offers business facilities to business travelers. There is a meeting facility within the airport where you can hold meetings on arrival. There is a workstation where you can do your work since there is the power to charge your machine. A printer is there for you to print the necessary documents that you need.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Seattle to Ireland

 
Need help choosing which airline to fly with from Seattle to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
7.9Comfort
8.6Crew
8.2Boarding
7.4Food
8.0Entertainment
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Are Longus was fine. I booked thru Kayak and was unable to get my business class seat early. Sat next to galley. Crew forgot to wake me for breakfast.

I was pleasantly surprised - it has been awhile since I traveled with them - other than being delayed leaving Malaga everything ran very smoothly- yes I would travel with aer Lingus again and yes I would recommended

I loved how they arrange boarding (starting with people seated in back and moving to the front). Flight crew was very polite and welcoming. Seating was ok, I felt like there was enough leg space however it is noticeable when the passenger in front of you sets their seat back.

Flight staff very friendly and helpful where possible. Late flight and travelling with young child, cabin lights remained on for the duration of the flight which was a little disappointing considering the time of the flight. Overall very happy to travel with Aer Lingus.

Nice to be on a flight that wasn't fully booked so there were only two of us in the three seat row.

The only problem was there are games on the entertaiment system. The guy behind me played poker the entire time and poking the back of my seat. I hope they remove these.

Delayed due to weather... fine. But then the board us. Rows 15 and back had to go down the stairs and back up the back stair entrance to the plane. No assistance offered. Then they inform us that we are delayed for paperwork for an hour. So why did we board? Then, about 45min later they inform us that it'll be another 60-90mins. Really? No wifi, no seat entertainment, no drink or snacks offered. And we were not allowed to deboard.

Great travel. Wonderful experience. Hope to do it again in the near future. God willing

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Leg space was not enough. The meal was not satisfactory.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

Book cheap flights from Seattle to Ireland

Recent round-trip flight deals

11/4Mon
1 stopAmerican Airlines
12h 20mSEA-DUB
11/11Mon
1 stopAmerican Airlines
30h 30mDUB-SEA
$437
11/11Mon
nonstopAer Lingus
9h 15mSEA-DUB
11/20Wed
nonstopAer Lingus
9h 45mDUB-SEA
$439
10/13Sun
1 stopDelta
14h 00mSEA-DUB
11/1Fri
1 stopDelta
18h 35mDUB-SEA
$450
10/13Sun
1 stopDelta
14h 00mSEA-DUB
11/1Fri
2 stopsDelta
19h 46mDUB-SEA
$454
10/30Wed
1 stopBritish Airways
17h 00mSEA-DUB
11/27Wed
2 stopsBritish Airways
21h 39mDUB-SEA
$476
10/16Wed
1 stopIcelandair
11h 15mSEA-DUB
10/30Wed
1 stopIcelandair
13h 30mDUB-SEA
$478
9/4Wed
1 stopIcelandair
10h 55mSEA-DUB
9/11Wed
1 stopIcelandair
16h 20mDUB-SEA
$483
10/13Sun
1 stopBritish Airways
13h 25mSEA-DUB
10/30Wed
1 stopBritish Airways
14h 05mDUB-SEA
$492
8/25Sun
1 stopUnited Airlines
20h 10mSEA-DUB
9/5Thu
2 stopsUnited Airlines
33h 53mDUB-SEA
$537
9/4Wed
1 stopUnited Airlines
13h 52mSEA-DUB
9/10Tue
1 stopUnited Airlines
20h 11mDUB-SEA
$549

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Recent one-way flight deals

9/30Mon
2 stops
15h 05mSEA-DUB
$255
7/23Tue
1 stopIcelandair
32h 10mSEA-DUB
$262
7/21Sun
1 stopIcelandair
28h 05mSEA-DUB
$263
9/8Sun
nonstopAmerican Airlines
9h 00mSEA-DUB
$499
7/29Mon
1 stopAmerican Airlines
24h 31mSEA-DUB
$503
8/17Sat
1 stopDelta
26h 10mSEA-DUB
$511
9/5Thu
1 stopDelta
26h 10mSEA-DUB
$561
9/7Sat
nonstopAer Lingus
9h 00mSEA-DUB
$667
8/18Sun
nonstopBritish Airways
9h 00mSEA-DUB
$709
8/23Fri
nonstopBritish Airways
9h 00mSEA-DUB
$832

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Last minute flights from Seattle to Ireland

Last minute flight, train and bus deals

5/29Wed
multi-stopIcelandair
11h 15mSEA-DUB
6/19Wed
multi-stopIcelandair
31h 05mDUB-SEA
$946
5/31Fri
multi-stopIcelandair
28h 05mSEA-DUB
6/7Fri
multi-stopIcelandair
13h 25mDUB-SEA
$1,065
5/29Wed
multi-stopAmerican Airlines
15h 55mSEA-DUB
6/19Wed
multi-stopAmerican Airlines
19h 12mDUB-SEA
$1,141
6/2Sun
multi-stopDelta
26h 05mSEA-DUB
6/9Sun
multi-stopDelta
29h 00mDUB-SEA
$1,242
6/2Sun
multi-stopDelta
26h 05mSEA-DUB
6/15Sat
multi-stopDelta
20h 24mDUB-SEA
$1,244
5/30Thu
multi-stopUnited Airlines
22h 40mSEA-DUB
6/2Sun
multi-stopUnited Airlines
33h 13mDUB-SEA
$1,436
5/30Thu
multi-stopUnited Airlines
26h 45mSEA-DUB
6/2Sun
multi-stopUnited Airlines
33h 13mDUB-SEA
$1,449
6/1Sat
multi-stopAmerican Airlines
24h 30mSEA-DUB
6/9Sun
multi-stopAmerican Airlines
19h 12mDUB-SEA
$1,462
5/31Fri
nonstopAer Lingus
9h 00mSEA-DUB
6/7Fri
nonstopAer Lingus
9h 41mDUB-SEA
$2,388
6/2Sun
nonstopAer Lingus
9h 00mSEA-DUB
6/9Sun
nonstopAer Lingus
9h 41mDUB-SEA
$2,469

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Seattle - Ireland Flights

Departure:

Seattle (SEA)United States

Return flight deals:

Ireland - Seattle

Cabin classes:

$4,386
$8,348
$470