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$486+ Cheap flights from Shannon (SNN) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — SEA
Jul 17 — Jul 241
Fri 7/17
Fri 7/24
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 June 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Wed 8/57:30 am
SNN
-
SEA
2 stops17h 40m
Multiple Airlines
Mon 8/319:45 pm
SEA
-
SNN
1 stop27h 45m
Multiple Airlines
Deal found 6/13$926
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Fri 10/212:30 pm
SNN
-
SEA
2 stops18h 26m
United Airlines
Tue 10/67:11 am
SEA
-
SNN
2 stops19h 04m
United Airlines
Deal found 6/13$958
This KLM deal was found by Cheapflights users on 6/15. 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 6/221:05 pm
SNN
-
SEA
2 stops18h 54m
Multiple Airlines
Sun 6/2811:40 am
SEA
-
SNN
1 stop15h 30m
Multiple Airlines
Deal found 6/15$970
This KLM deal was found by Cheapflights users on 6/17. 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.
Thu 6/251:05 pm
SNN
-
SEA
2 stops31h 31m
Multiple Airlines
Mon 6/297:15 am
SEA
-
SNN
1 stop19h 55m
Multiple Airlines
Deal found 6/17$972
This Sembo deal was found by Cheapflights users on 6/13. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:30 am
SNN
-
SEA
2 stops17h 40m
Aer Lingus
Mon 8/317:10 pm
SEA
-
SNN
2 stops17h 25m
Aer Lingus
Deal found 6/13$983
This Delta deal was found by Cheapflights users on 6/15. 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.
Mon 6/221:05 pm
SNN
-
SEA
1 stop15h 14m
Delta
Sun 6/288:40 am
SEA
-
SNN
2 stops18h 30m
Delta
Deal found 6/15$1,022
This Air France deal was found by Cheapflights users on 6/17. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/251:05 pm
SNN
-
SEA
2 stops31h 31m
Air France
Mon 6/296:55 pm
SEA
-
SNN
2 stops32h 15m
Air France
Deal found 6/17$1,071
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Mon 6/2212:30 pm
SNN
-
SEA
1 stop15h 06m
United Airlines
Sun 6/2810:52 am
SEA
-
SNN
1 stop12h 38m
United Airlines
Deal found 6/15$1,190

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 June 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$926
(Kiwi.com)

One-way from

$486
(Cheapflightsfares)
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
Search Deals
One-way flight 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 June 17, 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
Quickest round-trip

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Fri 10/2

12:30 pm-9:55 pm

1 stop17h 25m

Seattle/Tacoma Intl

Tue 10/6

7:00 am-10:15 am

2 stops19h 15m

$958
Cheapest one-way

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sun 10/25

8:05 pm-7:20 pm

2 stops30h 15m

$486

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sun 10/25

3:55 pm-7:20 pm

3 stops34h 25m

$570

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Thu 8/6

6:05 am-5:10 pm

2 stops19h 05m

$584
Quickest one-way

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Tue 8/4

7:30 am-5:10 pm

2 stops17h 40m

$599

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sun 8/2

7:30 am-10:40 am

3 stops35h 10m

$798

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 8/5

9:15 pm-11:35 am

1 stop22h 20m

$886

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Fri 8/7

9:15 pm-6:45 pm

1 stop29h 30m

$976

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Tue 8/4

4:50 pm-11:35 am

1 stop26h 45m

$1,148

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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 17h 25m. Fly via United Airlines to get the fastest option. There are 4485 mi between Shannon, Clare and Seattle.

  • 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
SeaTac
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville

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