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$697+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SEA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Shannon to Seattle

Cheapest flights from Shannon to Seattle
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 March 12, 2026.

This British Airways deal was found by Cheapflights users on 3/8. 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.
Wed 5/67:30 am
SNN
-
SEA
2 stops23h 08m
British Airways
Sun 5/107:10 am
SEA
-
SNN
2 stops29h 25m
British Airways
Deal found 3/8$697
This British Airways deal was found by Cheapflights users on 3/9. 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.
Wed 6/34:50 pm
SNN
-
SEA
1 stop26h 45m
British Airways
Sun 6/78:20 pm
SEA
-
SNN
1 stop31h 00m
British Airways
Deal found 3/9$724
This American Airlines deal was found by Cheapflights users on 3/10. 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 3/192:45 pm
SNN
-
SEA
2 stops40h 39m
American Airlines
Mon 3/235:00 pm
SEA
-
SNN
2 stops29h 55m
American Airlines
Deal found 3/10$744
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 6/311:00 am
SNN
-
SEA
2 stops17h 33m
American Airlines
Sun 6/710:35 pm
SEA
-
SNN
2 stops22h 50m
American Airlines
Deal found 3/11$746
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 5/612:30 pm
SNN
-
SEA
2 stops18h 22m
United Airlines
Sun 5/1011:55 am
SEA
-
SNN
1 stop14h 20m
United Airlines
Deal found 3/8$892
This United Airlines deal was found by Cheapflights users on 3/8. 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 7/99:30 am
SNN
-
SEA
1 stop17h 36m
United Airlines
Wed 7/297:00 am
SEA
-
SNN
1 stop16h 30m
United Airlines
Deal found 3/8$1,009
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 6/39:30 am
SNN
-
SEA
2 stops19h 40m
United Airlines
Sun 6/78:56 am
SEA
-
SNN
2 stops17h 19m
United Airlines
Deal found 3/10$1,010
This TravelUp deal was found by Cheapflights users on 3/10. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/195:30 pm
SNN
-
SEA
1 stop26h 00m
Multiple Airlines
Mon 3/231:37 pm
SEA
-
SNN
2 stops20h 08m
Multiple Airlines
Deal found 3/10$1,048

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$697
(British Airways)
Provider with most accurate pricing for Shannon-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Shannon-Seattle/Tacoma Intl flights.
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From Shannon to Seattle/Tacoma Intl
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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 2,558,603 searches. Data last updated March 12, 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

Price

Cheapest round-trip

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 5/6

7:30 am-10:38 pm

2 stops23h 08m

Seattle/Tacoma Intl

Sun 5/10

7:10 am-8:35 pm

2 stops29h 25m

$697

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 6/3

4:50 pm-11:35 am

1 stop26h 45m

Seattle/Tacoma Intl

Sun 6/7

8:20 pm-11:20 am

1 stop31h 00m

$724

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 6/3

11:00 am-8:33 pm

2 stops17h 33m

Seattle/Tacoma Intl

Sun 6/7

10:35 pm-5:25 am

2 stops22h 50m

$746

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 5/6

12:30 pm-1:12 am

2 stops20h 42m

Seattle/Tacoma Intl

Sun 5/10

11:55 am-10:15 am

1 stop14h 20m

$892
Quickest round-trip

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Thu 7/9

9:30 am-7:06 pm

1 stop17h 36m

Seattle/Tacoma Intl

Wed 7/29

7:00 am-7:30 am

1 stop16h 30m

$1,009

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 6/3

9:30 am-9:10 pm

2 stops19h 40m

Seattle/Tacoma Intl

Sun 6/7

8:56 am-10:15 am

2 stops17h 19m

$1,010

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Shannon, Clare-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Shannon, Clare-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Shannon, Clare-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.
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.

  • How long is the flight from Shannon, Clare to Seattle?

    There are many flights that can get you from Shannon, Clare to Seattle in 23h 08m. Fly via British Airways or American Airlines to get the fastest option. There are 4485 mi between Shannon, Clare and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Shannon to Seattle that include hotel bookings?

    Yes. In addition to deals on Shannon to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Shannon to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to Seattle.

  • Can I find deals for business class flights from Shannon to Seattle?

    Yes. Cheapflights offers flight deals from Shannon to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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