$239 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 7/26. 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
1 adult, Economy

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Flights Deals

Best Ireland Flight Deals from Seattle

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublinnonstop$444
Shannon
Shannon1 stop$576
Cork
Cork2 stops$624
Milltown (Kerry)
Milltown (Kerry)2 stops$721
Dublin
Dublinnonstop$444
Shannon
Shannon1 stop$576
Cork
Cork2 stops$624
Milltown (Kerry)
Milltown (Kerry)2 stops$721

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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Ireland

Sun, Aug 3 - Tue, Aug 19
Aer Lingus Logo
7:35 pm - 12:35 pmSEA-DUB
9h 00mnonstop
Aer Lingus Logo
4:10 pm - 5:50 pmDUB-SEA
9h 40mnonstop
$444Aer Lingus
Find Deal
Sun, Oct 12 - Sat, Oct 18
Scandinavian Airlines Logo
4:20 pm - 6:15 pmSEA-DUB
17h 55m1 stop
Scandinavian Airlines Logo
8:05 pm - 2:00 pmDUB-SEA
25h 55m2 stops
$446Scandinavian Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Icelandair Logo
2:35 pm - 10:15 amSEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 am - 5:00 pmDUB-SEA
13h 30m1 stop
$454Icelandair
Find Deal
Wed, Nov 12 - Wed, Nov 26
United Airlines Logo
8:00 am - 10:05 amSEA-DUB
18h 05m1 stop
United Airlines Logo
9:00 am - 11:40 amDUB-SEA
34h 40m2 stops
$455United Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 26
Icelandair Logo
2:35 pm - 10:15 amSEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 am - 5:00 pmDUB-SEA
13h 30m1 stop
$456Icelandair
Find Deal
Mon, Nov 17 - Fri, Nov 28
United Airlines Logo
9:25 am - 10:05 amSEA-DUB
16h 40m2 stops
United Airlines Logo
9:00 am - 12:59 amDUB-SEA
23h 59m2 stops
$468United Airlines
Find Deal
Mon, Aug 4 - Wed, Aug 20
American Airlines Logo
8:20 pm - 5:15 pmSEA-DUB
12h 55m1 stop
American Airlines Logo
11:45 am - 6:41 pmDUB-SEA
14h 56m1 stop
$480American Airlines
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Tue, Aug 26 - Fri, Sep 5
British Airways Logo
1:30 pm - 9:50 amSEA-DUB
12h 20m1 stop
British Airways Logo
10:55 am - 6:20 pmDUB-SEA
15h 25m1 stop
$507British Airways
Find Deal
Tue, Aug 26 - Wed, Sep 10
American Airlines Logo
1:30 pm - 10:15 amSEA-DUB
12h 45m1 stop
American Airlines Logo
12:40 pm - 9:23 pmDUB-SEA
16h 43m1 stop
$510American Airlines
Find Deal
Tue, Sep 23 - Tue, Oct 7
British Airways Logo
1:30 pm - 9:50 amSEA-DUB
12h 20m1 stop
British Airways Logo
8:20 pm - 11:35 amDUB-SEA
23h 15m1 stop
$541British Airways
Find Deal
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 $453 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 $453.

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 $2,093 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 $437 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,018 and $858 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$239
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 1% 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 in the afternoon, when round-trip flights cost $610 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 $866.

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 8790 reviews
6.6Food
7.0Entertainment
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

There was no room in the seats, smallest room we've ever had and the food was awful.

I dont fly them much anymore. Other carries offere better pricing and better seating options

Seats weren't very comfortable for a long haul flight but the service made up for it.

This flight was of exactly the same high standard as the outbound leg, exactly a week earlier - except that we didn't have any food or drink because it departed at around midnight.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

I liked how they looked after couples by providing a row of 4 seats if available.

Food was very bad. Boarding was disorganized and messy. Crew was friendly

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.

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!

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

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.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Dreadfully long wait for bags at Dublin coming off an already late flight.

The internet was horrible. Plus they charged me $25 for service that didn't work which should have been free since I'm Concierge Key. The flight attendant Rick Young was excellent. Greeted me by name and very attentive.

Not good. First time flying AA in years and won’t be doing so again. We departed late and missed our connecting flight to Barcelona. As a result we missed the first two days of a Mediterranean cruise. No reason given for the delay. Got rerouted from JFK to Heathrow and then to Barcelona. Flight to Heathrow was delayed causing us to miss the flight to Barcelona again. Routed then to Palmero where we had to purchase transportation and a 2 night hotel stay to pick up the cruise there. Probably cost us $2k plus.

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

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