$477+ Cheap flights from Shannon (SNN) 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SEA
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Shannon 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Shannon to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Shannon to SeattleExplore the most affordable flight options available from Shannon 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 Shannon to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
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 Shannon to SeattleDiscover carefully curated flight deals from Shannon 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 Shannon 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 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 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 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 Shannon to SeattleDiscover last-minute flight deals from Shannon to Seattle. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Shannon to Seattle. Data last updated October 30, 2026 and is based on user searches.
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
One-way flights from Shannon to SeattleSearch for one-way flight options from Shannon to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Shannon to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
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
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 12/119:25 am -
3 stops44h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$499
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/132:00 pm -
3 stops59h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$524
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/112:00 pm -
2 stops18h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Aer Lingus logo]()
$553
Find flight deals from Shannon to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Round-trip from | $808 (British Airways) |
|---|---|
One-way from | $477 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Shannon 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 Shannon to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
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
Quickest round-trip
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Mon 1/11
7:50 am-4:50 pm
1 stop17h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$496
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Fri 12/11
9:25 am-9:59 pm
3 stops44h 34m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$499
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Sun 12/13
6:20 pm-5:00 pm
2 stops30h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$591
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Sun 12/13
7:50 am-4:50 pm
1 stop17h 00m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$630
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Thu 11/12
7:50 am-4:50 pm
1 stop17h 00m
Seattle/Tacoma Intl
Tue 11/17
1:30 pm-11:30 am
1 stop14h 00m
$808
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Thu 11/12
7:50 am-5:00 pm
2 stops17h 10m
Seattle/Tacoma Intl
Tue 11/17
2:35 pm-9:30 pm
2 stops22h 55m
$825
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Thu 1/14
2:00 pm-11:55 am
2 stops29h 55m
Seattle/Tacoma Intl
Mon 1/18
6:06 am-5:50 am
2 stops15h 44m
$864
ShannonSeattle
SNN Shannon - SEA Seattle/Tacoma Intl
SNNSEA
Shannon
Thu 1/14
7:50 am-4:50 pm
1 stop17h 00m
Seattle/Tacoma Intl
Mon 1/18
6:45 pm-4:45 pm
1 stop14h 00m
$908
Sorted by cheapest first
Best time to book a flight from Shannon to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Shannon with our price prediction graph.
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.
Related info for your journey
Find useful and relevant information for your journey from Shannon 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?
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