$218 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 4/20. 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, 0 bags

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Cheap Flights from Seattle to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin2 stops$502
Shannon
Shannon1 stop$563
Cork
Cork1 stop$687
Dublin
Dublin2 stops$502
Shannon
Shannon1 stop$563
Cork
Cork1 stop$687

Book Cheap Seattle to Ireland Plane Tickets

 
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

Fri, Aug 28 - Mon, Sep 7
Scandinavian Airlines Logo
3:55 pm - 8:00 am
SEA
-
DUB
32h 05m
2 stops
Scandinavian Airlines Logo
7:50 pm - 1:45 pm
DUB
-
SEA
25h 55m
2 stops
$502Scandinavian Airlines
Tue, Sep 8 - Sat, Sep 26
Scandinavian Airlines Logo
3:55 pm - 10:25 am
SEA
-
DUB
34h 30m
2 stops
Scandinavian Airlines Logo
8:00 pm - 1:45 pm
DUB
-
SEA
25h 45m
2 stops
$508Scandinavian Airlines
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
12:08 pm - 10:15 am
SEA
-
SNN
14h 07m
1 stop
United Airlines Logo
12:30 pm - 10:39 am
SNN
-
SEA
30h 09m
2 stops
$563United Airlines
Mon, May 4 - Tue, May 12
United Airlines Logo
11:55 am - 10:15 am
SEA
-
SNN
14h 20m
1 stop
United Airlines Logo
12:30 pm - 11:48 am
SNN
-
SEA
31h 18m
2 stops
$568United Airlines
Sun, Aug 30 - Mon, Sep 7
Delta Logo
1:30 pm - 2:40 pm
SEA
-
ORK
17h 10m
1 stop
Delta Logo
5:10 pm - 4:35 pm
ORK
-
SEA
31h 25m
1 stop
$687Delta
Tue, Sep 1 - Mon, Sep 7
Lufthansa Logo
2:10 pm - 4:30 pm
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
5:05 pm - 11:55 am
ORK
-
SEA
26h 50m
1 stop
$698Lufthansa
Tue, Sep 1 - Mon, Sep 7
Lufthansa Logo
2:10 pm - 4:30 pm
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
5:05 pm - 8:03 pm
ORK
-
SEA
34h 58m
2 stops
$708Lufthansa
Wed, Apr 22 - Wed, Apr 29
Delta Logo
11:10 am - 2:40 pm
SEA
-
ORK
19h 30m
2 stops
Delta Logo
6:15 am - 11:40 am
ORK
-
SEA
13h 25m
1 stop
$719Delta
Sat, Sep 5 - Sat, Sep 12
KLM Logo
1:30 pm - 2:25 pm
SEA
-
ORK
16h 55m
1 stop
KLM Logo
3:10 pm - 11:15 am
ORK
-
SEA
28h 05m
1 stop
$740KLM
Sat, Sep 5 - Sat, Sep 12
KLM Logo
1:30 pm - 2:25 pm
SEA
-
ORK
16h 55m
1 stop
KLM Logo
3:10 pm - 11:15 am
ORK
-
SEA
28h 05m
1 stop
$741KLM
Booking Insights

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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Seattle found in the last 72 hours was to Dublin, at $602 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 $602.

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

The average price for all round-trip flights from Seattle to Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ireland is generally at night, when round-trip flights cost $666 on average. Morning departures are around 100% 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 $833.

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.

No, with an average price for the route of $644, prices are generally cheapest when you fly direct.

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 November, when tickets cost $468 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $919 and $751 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, Tuesday 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 Thursday 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, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$218
Best time to beat the crowds with an average 13% 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 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.

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.

Reviews of the 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 9418 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

8.0 ExcellentAlissa, Mar 2026
TPA - EWR
Read more United Airlines reviews

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

The gate got changed several times and the flight was delayed over an hour. Awful experience

Poor communication ahead of time about flight delays and old planes/other equipment.

The flight was delayed multiple times. I was autobooted and placed in the center seat in the last row of the plane.

My flight was delayed. We left at midnight. I got to Greensboro (GSO) at 1am. All of AA's flights in/out of Charlotte always seem to be delayed or canceled. It took me all day on Sunday to get to my destination of Cincinnati from Greensboro. I had to be rerouted through Chicago because my original flight was canceled as the door to plane was closing in GSO. The saddest part is I could have driven and arrived sooner. . . I recognize there is a lot going on that impacts travel. This week it was weather. Yesterday in Cincinnati it was President Trump. But as a frequent flyer, the flight from South Bend to Charlotte always runs late. The subsequent flight to Greensboro is always midnight to 2am. . . I do want to give props the Charlotte boarding crew. They had four flights going out of the same area at the same time. They turned it quickly and mitigated the grumbling from the crowd.

Never going to fly your airline again if it can be avoided.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

American continues to decline in their customer service and its beyond disappointing.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

The crew was excellent and overall the flight was good. No complaints.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

Really appreciated the care, attention and friendliness of cabin crew. Very comfortable, prompt and efficient flight.

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

Information on your arrival and departure airports