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$366+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Mar 27 — Apr 31
Fri 3/27
Fri 4/3
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 February 25, 2026.

This United Airlines deal was found by Cheapflights users on 2/23. 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 4/145:00 am
SEA
-
SNN
2 stops21h 15m
United Airlines
Sat 4/2512:30 pm
SNN
-
SEA
2 stops18h 57m
United Airlines
Deal found 2/23$573
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Tue 4/76:00 am
SEA
-
SNN
2 stops20h 15m
United Airlines
Tue 4/1412:30 pm
SNN
-
SEA
2 stops16h 36m
United Airlines
Deal found 2/21$583
This Delta deal was found by Cheapflights users on 2/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:20 am
SEA
-
SNN
1 stop19h 50m
Delta
Sat 8/221:05 pm
SNN
-
SEA
1 stop29h 19m
Delta
Deal found 2/21$599
This KLM deal was found by Cheapflights users on 2/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
SEA
-
SNN
2 stops33h 25m
KLM
Sat 8/221:05 pm
SNN
-
SEA
1 stop29h 19m
KLM
Deal found 2/21$610
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Mon 5/47:00 am
SEA
-
SNN
2 stops19h 15m
United Airlines
Wed 5/2012:30 pm
SNN
-
SEA
2 stops27h 30m
United Airlines
Deal found 2/22$618
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Fri 8/1411:59 pm
SEA
-
SNN
2 stops23h 31m
United Airlines
Sat 8/2212:30 pm
SNN
-
SEA
2 stops19h 29m
United Airlines
Deal found 2/22$623
This oojo deal was found by Cheapflights users on 2/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:10 pm
SEA
-
SNN
2 stops17h 25m
Aer Lingus
Mon 8/319:15 pm
SNN
-
SEA
2 stops27h 55m
Aer Lingus
Deal found 2/25$639
This United Airlines deal was found by Cheapflights users on 2/24. 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.
Sat 8/155:00 am
SEA
-
SNN
2 stops21h 15m
United Airlines
Sat 8/2212:30 pm
SNN
-
SEA
3 stops33h 26m
United Airlines
Deal found 2/24$643
This oojo deal was found by Cheapflights users on 2/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:05 pm
SEA
-
SNN
2 stops15h 20m
Aer Lingus
Wed 4/19:15 pm
SNN
-
SEA
2 stops51h 55m
Aer Lingus
Deal found 2/25$651
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Thu 8/135:00 am
SEA
-
SNN
2 stops21h 15m
United Airlines
Sun 8/169:30 am
SNN
-
SEA
2 stops30h 29m
United Airlines
Deal found 2/22$668

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 February 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$573
(United Airlines)

One-way from

$366
(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
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 February 25, 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

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/19

5:07 am-7:30 am

2 stops18h 23m

Shannon

Mon 8/31

9:30 am-10:59 pm

2 stops21h 29m

$573

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

7:00 am-10:15 am

2 stops19h 15m

Shannon

Sat 4/25

12:30 pm-11:27 pm

2 stops18h 57m

$573

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/7

6:00 am-10:15 am

2 stops20h 15m

Shannon

Tue 4/14

12:30 pm-9:06 pm

2 stops16h 36m

$583

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/11

7:20 am-11:10 am

1 stop19h 50m

Shannon

Sat 8/22

1:05 pm-10:24 am

1 stop29h 19m

$599

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/11

5:45 pm-11:10 am

2 stops33h 25m

Shannon

Sat 8/22

1:05 pm-10:24 am

1 stop29h 19m

$610

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/4

7:00 am-10:15 am

2 stops19h 15m

Shannon

Wed 5/20

12:30 pm-8:00 am

2 stops27h 30m

$618

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/15

5:00 am-10:15 am

2 stops21h 15m

Shannon

Sat 8/22

12:30 pm-11:59 pm

2 stops19h 29m

$623

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/12

8:30 am-7:30 am

2 stops15h 00m

$404

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/11

6:30 am-10:15 am

2 stops19h 45m

$404

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/25

9:55 pm-11:10 am

1 stop29h 15m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 11 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 February 25, 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
9,345 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,345 reviews
United Airlines
7.4
Good
9,345 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,345 reviews
United Airlines
7.4
Good
9,345 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 23m. 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
Seattle to Shannon flights
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 February 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$469Average$621FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$595Average$755FlexibilityNo cancel feeOn-time69%

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