$252 Find Cheap Flights from Seattle to Ireland

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 10/18. 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.
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Best Ireland Flight Deals from Seattle

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

Dublin
Dublin1 stop$434
Shannon
Shannon1 stop$716
Cork
Cork1 stop$745
Milltown (Kerry)
Milltown (Kerry)1 stop$1,062
Dublin
Dublin1 stop$434
Shannon
Shannon1 stop$716
Cork
Cork1 stop$745
Milltown (Kerry)
Milltown (Kerry)1 stop$1,062

Cheap Flights from Seattle to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Ireland

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Ireland.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
4:00 pm - 6:15 pmSEA-DUB
18h 15m1 stop
Scandinavian Airlines Logo
10:15 am - 1:50 pmDUB-SEA
35h 35m1 stop
$434Scandinavian Airlines
Find Deal
Mon, Aug 25 - Sun, Sep 7
Scandinavian Airlines Logo
4:00 pm - 11:50 amSEA-DUB
35h 50m1 stop
Scandinavian Airlines Logo
10:15 am - 1:50 pmDUB-SEA
35h 35m1 stop
$447Scandinavian Airlines
Find Deal
Wed, Aug 27 - Sun, Sep 7
Aer Lingus Logo
7:35 pm - 12:40 pmSEA-DUB
9h 05mnonstop
Aer Lingus Logo
4:10 pm - 5:50 pmDUB-SEA
9h 40mnonstop
$462Aer Lingus
Find Deal
Mon, Aug 11 - Tue, Aug 19
Aer Lingus Logo
7:35 pm - 12:40 pmSEA-DUB
9h 05mnonstop
Aer Lingus Logo
4:10 pm - 5:50 pmDUB-SEA
9h 40mnonstop
$463Aer Lingus
Find Deal
Tue, Aug 5 - Tue, Aug 19
Icelandair Logo
3:45 pm - 1:15 pmSEA-DUB
13h 30m1 stop
Icelandair Logo
12:15 pm - 5:50 pmDUB-SEA
13h 35m1 stop
$508Icelandair
Find Deal
Wed, Aug 6 - Wed, Aug 20
Icelandair Logo
11:30 pm - 1:15 pmSEA-DUB
29h 45m1 stop
Icelandair Logo
2:15 pm - 5:50 pmDUB-SEA
11h 35m1 stop
$510Icelandair
Find Deal
Thu, Aug 14 - Thu, Aug 21
American Airlines Logo
8:20 pm - 8:35 pmSEA-SNN
16h 15m1 stop
American Airlines Logo
7:40 am - 6:20 pmSNN-SEA
18h 40m1 stop
$979American Airlines
Find Deal
Thu, Oct 16 - Sat, Oct 25
American Airlines Logo
6:24 am - 10:45 amSEA-ORK
20h 21m2 stops
American Airlines Logo
7:20 am - 8:04 pmORK-SEA
20h 44m2 stops
$1,020American Airlines
Find Deal
Fri, Jun 13 - Sat, Sep 13
British Airways Logo
1:30 pm - 10:45 amSEA-ORK
13h 15m1 stop
British Airways Logo
8:30 pm - 11:30 amORK-SEA
23h 00m1 stop
$1,541British Airways
Find Deal
Fri, Jun 13 - Sat, Sep 13
British Airways Logo
2:00 pm - 8:35 pmSEA-SNN
22h 35m2 stops
British Airways Logo
7:40 am - 6:56 pmSNN-SEA
19h 16m2 stops
$1,557British Airways
Find Deal
Mon, May 12 - Wed, May 21
Useful Info

KAYAK's insights & trends for Seattle to Ireland flights

Get data-powered insights and trends into flights from Seattle to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to Ireland flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Seattle to Ireland.

The cheapest ticket to Ireland from Seattle found in the last 72 hours was to Dublin, at $620 round-trip. The most popular route is from Seattle (SEA) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $620.

Can I save money by flying with a layover from Seattle to Ireland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $1,298 on average.

What is the cheapest month to fly from Seattle to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Ireland is January, when tickets cost $438 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,023 and $879 respectively.

What’s the cheapest day of the week to fly from Seattle to Ireland?

The average price of all round-trip flights from Seattle to Ireland clicked on KAYAK for each day over the last 12 months.

For Seattle to Ireland, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Ireland back to Seattle, the best deals are generally found on Sunday, with Saturday being the most expensive.

How far in advance should I book a flight from Seattle to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Ireland, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.


Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$252
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 2% increase in price.
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 from Seattle to Ireland 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 from Seattle to Ireland with an airline and back 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 from Seattle to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when round-trip flights cost $606 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is $871.

Top tips for finding cheap flights to Ireland

  • 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.

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.
7.4
United AirlinesOverall score based on 8696 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

take snacks and food. purchase options in flight are not great

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

Seats were alarming close to the row in front of you. I didn’t do the measurements online, which I’m sure they’re available, but it seemed much tighter than other planes, but the airplane itself was well maintained and looked fairly new. My only complaint on the staff was that we’re on an international flight. Normally they give you wine with dinner and the flight attendant decided to pull some strict restrictions and wouldn’t give more than one glass of wine per person, and you could not share with your spouse, which seemed ridiculous when we have four people on the plane with us and only one person ordered wine asked for a second one and she said oh absolutely not. It’s only one per person Which on a transcontinental usually is not the case. They’re very attentive on making sure everyone is as comfortable as possible.

Boarding seemed a bit chaotic and we had to walk outside across the tarmac. Passengers of all ages had to drag carry on luggage up the outside stairway into the aircraft. There was no WiFi. Very uncomfortable crammed seats. Glad in-air time was only an hour!

There was no flight. I booked a flight from Toronto to Bordeaux with a stopover in Dublin. I arrived in Dublin and the flight number I had didn't exist and the flight going to Bordeaux I wasn't on. I had to book a new flight with a different airline for later in the day and pay out of pocket.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Everything you need to know for your flight from Seattle to Ireland

Information on your arrival and departure airports

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