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$374+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
May 26 — Jun 21
Tue 5/26
Tue 6/2
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 April 26, 2026.

This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:47 am
SEA
-
SNN
1 stop12h 43m
United Airlines
Tue 9/812:30 pm
SNN
-
SEA
1 stop19h 15m
United Airlines
Deal found 4/26$770
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 8/45:00 am
SEA
-
SNN
2 stops21h 15m
United Airlines
Tue 8/259:30 am
SNN
-
SEA
2 stops21h 54m
United Airlines
Deal found 4/22$775
This United Airlines deal was found by Cheapflights users on 4/21. 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 8/37:01 am
SEA
-
SNN
1 stop16h 29m
United Airlines
Mon 8/249:30 am
SNN
-
SEA
1 stop17h 29m
United Airlines
Deal found 4/21$820
This United Airlines deal was found by Cheapflights users on 4/22. 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 8/25:00 pm
SEA
-
SNN
1 stop30h 30m
United Airlines
Sun 8/239:30 am
SNN
-
SEA
1 stop17h 29m
United Airlines
Deal found 4/22$826
This United Airlines deal was found by Cheapflights users on 4/24. 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 9/1410:47 am
SEA
-
SNN
1 stop12h 43m
United Airlines
Mon 9/219:30 am
SNN
-
SEA
1 stop21h 12m
United Airlines
Deal found 4/24$830
This United Airlines deal was found by Cheapflights users on 4/24. 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 8/146:00 pm
SEA
-
SNN
2 stops29h 30m
United Airlines
Fri 8/219:30 am
SNN
-
SEA
2 stops21h 41m
United Airlines
Deal found 4/24$835

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 April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$907
(Delta)

One-way from

$374
(United Airlines)
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
Search Deals

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 April 26, 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
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/9

1:05 pm-10:15 am

1 stop13h 10m

Shannon

Tue 6/16

9:30 am-7:06 pm

1 stop17h 36m

$940

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/25

8:00 am-10:15 am

2 stops18h 15m

Shannon

Mon 6/1

9:30 am-9:59 pm

2 stops20h 29m

$960

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/25

5:04 pm-7:30 am

2 stops30h 26m

Shannon

Fri 7/31

12:30 pm-11:51 am

2 stops31h 21m

$1,030

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/30

7:15 am-11:10 am

1 stop19h 55m

Shannon

Tue 7/7

1:05 pm-11:06 pm

1 stop18h 01m

$1,033

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/30

8:56 am-10:15 am

2 stops17h 19m

Shannon

Tue 7/7

9:30 am-8:53 pm

2 stops19h 23m

$1,033

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 7/1

10:52 am-7:30 am

1 stop12h 38m

Shannon

Wed 7/8

9:30 am-8:53 pm

2 stops19h 23m

$1,033
Cheapest one-way

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/25

5:04 pm-7:30 am

2 stops30h 26m

$374

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/25

10:40 pm-11:10 am

1 stop28h 30m

$379
Quickest one-way

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/18

11:39 pm-6:00 am

1 stop22h 21m

$653

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Sorted by cheapest first

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 April 26, 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
9,665 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,665 reviews
United Airlines
7.4
Good
9,665 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,668 reviews
United Airlines
7.4
Good
9,665 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 13h 10m. 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
Spokane to Dublin flights
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Seattle to Cork 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 April 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$469Average$597FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$586Average$751FlexibilityNo cancel feeOn-time69%

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