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$289+ Cheap flights from Seattle (SEA) to Galway, Ireland

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheap flight deals from Seattle to Galway

Cheapest flights from Seattle to Galway
Explore the most affordable flight options available from Seattle to Galway. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.

This KLM deal was found by Cheapflights users on 7/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:34 am
SEA
-
SNN
1 stop15h 36m
KLM
Mon 8/241:05 pm
SNN
-
SEA
1 stop18h 15m
KLM
Deal found 7/13$732
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Mon 8/36:00 am
SEA
-
SNN
2 stops17h 30m
United Airlines
Mon 8/249:30 am
SNN
-
SEA
2 stops19h 45m
United Airlines
Deal found 7/13$736
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/231:00 pm
SEA
-
SNN
1 stop13h 15m
United Airlines
Thu 10/112:30 pm
SNN
-
SEA
1 stop17h 25m
United Airlines
Deal found 7/14$790
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/176:15 pm
SEA
-
SNN
2 stops32h 00m
United Airlines
Fri 9/2512:30 pm
SNN
-
SEA
2 stops29h 31m
United Airlines
Deal found 7/14$794
This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:00 pm
SEA
-
SNN
1 stop24h 30m
United Airlines
Tue 9/19:30 am
SNN
-
SEA
1 stop17h 37m
United Airlines
Deal found 7/17$805
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/2410:41 am
SEA
-
SNN
1 stop12h 49m
United Airlines
Thu 9/39:30 am
SNN
-
SEA
1 stop14h 37m
United Airlines
Deal found 7/16$813
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 9/117:00 am
SEA
-
SNN
1 stop16h 30m
United Airlines
Mon 9/219:30 am
SNN
-
SEA
1 stop14h 37m
United Airlines
Deal found 7/15$825
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Sun 8/165:00 am
SEA
-
SNN
2 stops18h 30m
United Airlines
Mon 8/319:30 am
SNN
-
SEA
3 stops21h 56m
United Airlines
Deal found 7/18$854
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/1310:41 am
SEA
-
SNN
1 stop12h 49m
United Airlines
Thu 8/209:30 am
SNN
-
SEA
1 stop14h 37m
United Airlines
Deal found 7/16$863

Find flight deals from Seattle to Galway

Keep the following information in mind while searching for Seattle to Galway flight deals. Data was last updated July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$732
(KLM)

One-way from

$289
(Kiwi.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-Shannon flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Shannon flights.
Search Deals
From Seattle/Tacoma Intl to Galway
Search Deals
One-way flight from Seattle/Tacoma Intl to Galway
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Galway 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 July 18, 2026.
Use the filters below to find and compare flights from Seattle to Galway that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/23

5:00 am-7:30 am

2 stops18h 30m

Shannon

Sun 8/30

9:30 am-4:07 pm

1 stop14h 37m

$732

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

7:00 am-7:30 am

1 stop16h 30m

Shannon

Wed 8/19

9:30 am-7:07 pm

1 stop17h 37m

$732

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

8:35 am-10:15 am

2 stops17h 40m

Shannon

Tue 8/25

9:30 am-9:31 pm

2 stops20h 01m

$736
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 9/17

1:00 pm-10:15 am

1 stop13h 15m

Shannon

Fri 9/25

12:30 pm-9:55 pm

1 stop17h 25m

$790

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/16

5:00 am-7:30 am

2 stops18h 30m

Shannon

Mon 8/31

9:30 am-9:15 pm

2 stops19h 45m

$856

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/13

10:41 am-7:30 am

1 stop12h 49m

Shannon

Thu 8/20

9:30 am-9:41 pm

2 stops20h 11m

$867
Cheapest one-way

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/26

11:25 pm-9:35 am

3 stops50h 10m

$289

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/30

7:52 am-11:20 am

3 stops19h 28m

$311

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 11/1

2:35 pm-6:00 pm

3 stops43h 25m

$325
Quickest one-way

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 9/15

11:50 am-11:10 am

1 stop15h 20m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Seattle to Galway

Have a flexible travel schedule? Discover the best time to fly to Galway from Seattle 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Galway

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Galway

Get insights into the airlines that provide service to Galway. 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 Galway. Reviews last updated July 18, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Seattle to Galway. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,006 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,006 reviews
United Airlines
7.4
Good
10,006 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
American Airlines
7.1
Good
11,826 reviews
United Airlines
7.4
Good
10,006 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from Seattle to Galway. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Galway?

    If you book a flight to Galway from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Seattle/Tacoma Intl to Galway per day from 2 different airlines.

  • How long is the flight from Seattle to Galway?

    Airlines like United Airlines fly from Seattle to Galway in about 18h 30m. The time it takes to get you to your destination can typically vary by up to . The distance between Seattle and Galway is about 4485 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Galway 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

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Alternative routes for Seattle to Galway

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Dublin flights
Portland to Dublin flights
Seattle to Shannon flights
Seattle to Cork flights
Spokane to Dublin flights

Top 2 airlines flying from Seattle to Galway

Discover the top 2 airlines that operate flights from Seattle to Galway. 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 2,558,603 searches. Data last updated July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$468Average$549FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$586Average$1,095FlexibilityNo cancel feeOn-time69%

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