$436+ Cheap flights from Ireland to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Ireland to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ireland to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ireland to SeattleExplore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:30 am -
1 stop13h 30m
Thu 11/262:35 pm -
1 stop11h 40m
Deal found 10/29![Icelandair logo]()
$588
This Gotogate deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2111:30 am -
1 stop13h 30m
Sat 11/282:35 pm -
1 stop11h 40m
Deal found 10/28![Icelandair logo]()
$600
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:30 am -
1 stop13h 30m
Mon 11/232:35 pm -
1 stop11h 40m
Deal found 10/29![Icelandair logo]()
$615
This Scandinavian Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:10 am -
2 stops19h 52m
Mon 12/287:15 am -
2 stops27h 05m
Deal found 10/28![Scandinavian Airlines logo]()
$629
This lastminute.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 pm -
2 stops36h 52m
Thu 11/263:13 pm -
2 stops19h 07m
Deal found 10/27![Scandinavian Airlines logo]()
$640
This British Airways deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
1 stop17h 00m
Tue 11/171:30 pm -
1 stop14h 00m
Deal found 10/26![British Airways logo]()
$808
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
2 stops17h 10m
Tue 11/172:35 pm -
2 stops22h 55m
Deal found 10/26![Multiple Airlines logo]()
$825
This SmartFares deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:05 pm -
1 stop23h 20m
Fri 12/188:51 am -
1 stop12h 59m
Deal found 10/26![Multiple Airlines logo]()
$1,209
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:00 pm -
2 stops18h 47m
Fri 12/186:29 am -
2 stops15h 21m
Deal found 10/26![American Airlines logo]()
$1,267
Best flights from Ireland to SeattleDiscover carefully curated flight deals from Ireland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Ireland to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1310:10 am -
2 stops19h 52m
Mon 12/287:15 am -
2 stops27h 05m
Deal found 10/27![Scandinavian Airlines logo]()
$642
This Icelandair deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1411:30 am -
1 stop13h 30m
Mon 1/182:35 pm -
1 stop11h 40m
Deal found 10/29![Icelandair logo]()
$660
This Finnair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/209:00 am -
1 stop15h 50m
Sat 1/301:40 pm -
1 stop12h 15m
Deal found 10/27![Multiple Airlines logo]()
$673
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:50 am -
2 stops23h 07m
Thu 11/266:00 am -
2 stops19h 00m
Deal found 10/26![Delta logo]()
$681
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:40 am -
1 stop16h 23m
Thu 11/269:05 am -
2 stops16h 50m
Deal found 10/29![United Airlines logo]()
$741
This British Airways deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/95:55 pm -
1 stop30h 55m
Sat 1/231:40 pm -
1 stop17h 25m
Deal found 10/29![British Airways logo]()
$761
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/142:00 pm -
2 stops29h 55m
Mon 1/186:06 am -
2 stops15h 44m
Deal found 10/28![American Airlines logo]()
$864
This Scandinavian Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 pm -
2 stops35h 55m
Thu 11/267:27 am -
2 stops26h 53m
Deal found 10/26![Scandinavian Airlines logo]()
$653
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/125:45 am -
1 stop14h 02m
Fri 2/1911:00 am -
2 stops21h 20m
Deal found 10/27![Delta logo]()
$732
This deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/911:30 am -
1 stop13h 30m
Sat 1/232:35 pm -
1 stop11h 40m
Deal found 10/25![Icelandair logo]()
$733
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:45 am -
2 stops23h 04m
Fri 12/1110:55 pm -
1 stop25h 50m
Deal found 10/30![Delta logo]()
$734
This British Airways deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
1 stop17h 00m
Tue 11/171:30 pm -
1 stop14h 00m
Deal found 10/26![British Airways logo]()
$808
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
2 stops17h 10m
Tue 11/172:35 pm -
2 stops22h 55m
Deal found 10/26![Multiple Airlines logo]()
$825
This British Airways deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/147:50 am -
1 stop17h 00m
Mon 1/186:45 pm -
1 stop14h 00m
Deal found 10/28![British Airways logo]()
$908
Last-minute flights from Ireland to SeattleDiscover last-minute flight deals from Ireland to Seattle. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ireland to Seattle. Data last updated October 30, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:30 am -
1 stop13h 30m
Mon 11/232:35 pm -
1 stop11h 40m
Deal found 10/29![Icelandair logo]()
$615
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:30 am -
1 stop13h 30m
Thu 11/262:35 pm -
1 stop11h 40m
Deal found 10/29![Icelandair logo]()
$588
This lastminute.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 pm -
2 stops36h 52m
Thu 11/263:13 pm -
2 stops19h 07m
Deal found 10/27![Scandinavian Airlines logo]()
$640
This British Airways deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
1 stop17h 00m
Tue 11/171:30 pm -
1 stop14h 00m
Deal found 10/26![British Airways logo]()
$808
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:50 am -
2 stops17h 10m
Tue 11/172:35 pm -
2 stops22h 55m
Deal found 10/26![Multiple Airlines logo]()
$825
This Gotogate deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2111:30 am -
1 stop13h 30m
Sat 11/282:35 pm -
1 stop11h 40m
Deal found 10/28![Icelandair logo]()
$600
One-way flights from Ireland to SeattleSearch for one-way flight options from Ireland to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Ireland to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This KLM deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/195:45 am -
1 stop14h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![KLM logo]()
$436
This KLM deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/85:45 am -
1 stop14h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![KLM logo]()
$439
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/198:50 am -
2 stops20h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Delta logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/198:20 pm -
3 stops31h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/135:45 am -
2 stops18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:55 am -
2 stops18h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$445
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:55 am -
2 stops18h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/95:45 am -
2 stops24h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Delta logo]()
$452
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/118:45 pm -
3 stops33h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/119:15 pm -
3 stops54h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/115:45 am -
3 stops46h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$477
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/117:50 am -
1 stop17h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![British Airways logo]()
$496
Find flight deals from Ireland to Seattle
Keep the following information in mind while searching for Ireland to Seattle flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $588 (Gotogate) |
One-way from | $436 (KLM) |
Popular in | July |
Cheapest in | April |
Average price | $742 |
Good one-way deal | $554 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ireland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Ireland to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 2/10
5:45 am-11:47 am
1 stop14h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$439
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Fri 2/12
5:45 am-11:47 am
1 stop14h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$439
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Tue 1/19
8:50 am-8:50 pm
2 stops20h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$442
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Tue 1/19
8:20 pm-8:03 pm
3 stops31h 43m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$443
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 2/11
5:45 am-4:35 pm
2 stops18h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$449
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 2/10
5:45 am-4:36 pm
2 stops18h 51m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$452
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Mon 1/11
5:45 am-8:03 pm
3 stops46h 18m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$477
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 12/24
8:50 am-11:53 pm
2 stops23h 03m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$481
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Mon 3/22
5:45 am-6:55 pm
2 stops20h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$483
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Sat 12/26
9:40 am-11:53 pm
1 stop22h 13m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$491
Showing 1-10 of 28 resultsSorted by cheapest first
Best time to book a flight from Ireland to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Ireland with our price prediction graph.
DUB-SEA
SNN-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ireland to Seattle
IE0-SEA
DUB-SEA
SNN-SEA
What is the cheapest month to book a flight from Ireland to Seattle?
Currently, April is the cheapest month in which you can book a flight from Ireland to Seattle (average of $603). Flying from Ireland to Seattle in July is currently the most expensive (average of $1,041). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IE to SEA?
Find hourly flight availability from Ireland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
When flying from Ireland to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Ireland to Seattle delayed?
About 12% of weekly flights between Ireland and Seattle have experienced delays in the past year, with the average delay time being 163 minutes.
What is the most punctual flight time for Ireland to Seattle flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Ireland to Seattle flights?
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.
How far ahead should I book a flight from Ireland to Seattle?
The price you pay for your flight from Ireland to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated October 30, 2026.
Read through reviews of airlines operating flights from Ireland to Seattle, such as Aer Lingus. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.2
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.5
Food
6.7
Reviews
1 / 20
10.0
ExcellentKarin,Oct 2026
DUB - MCO
Comfort
7.2
Entertainment
7.1
Overall
7.3
Crew
8.1
Boarding
7.5
Food
6.7
Reviews
1 / 20
10.0
ExcellentKarin,Oct 2026
DUB - MCO
Related info for your journey
Find useful and relevant information for your journey from Ireland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Olympia
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Alternative routes for Ireland to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ireland to Seattle by cabin class
Find flights from Ireland to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ireland and Seattle flights
Browse other Ireland and Seattle flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Ireland to Seattle flights
Consider these flights traveling from Ireland to Seattle.
Top airline flying from Ireland to Seattle
Discover the top airline that operate flights from Ireland to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$552 | Average$720 | FlexibilityNo cancel fee | On-timeN/A |