$355+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Galway with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Galway
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to GalwayExplore 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 August 15, 2026.
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 August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am -
2 stops16h 30m
Tue 9/2912:30 pm -
3 stops33h 52m
Deal found 8/11![United Airlines logo]()
$821
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/205:00 am -
2 stops18h 30m
Tue 10/612:30 pm -
2 stops16h 45m
Deal found 8/13![United Airlines logo]()
$822
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/297:00 am -
1 stop19h 15m
Tue 10/612:30 pm -
1 stop17h 25m
Deal found 8/14![United Airlines logo]()
$830
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 10/46:30 am -
2 stops19h 45m
Tue 10/1312:30 pm -
1 stop17h 25m
Deal found 8/13![United Airlines logo]()
$834
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/711:14 pm -
2 stops27h 01m
Wed 10/1412:30 pm -
1 stop17h 25m
Deal found 8/14![United Airlines logo]()
$884
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/287:00 am -
1 stop19h 15m
Mon 10/512:30 pm -
1 stop17h 25m
Deal found 8/13![United Airlines logo]()
$890
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Thu 10/17:00 pm -
2 stops30h 30m
Thu 10/156:05 am -
1 stop20h 55m
Deal found 8/13![Multiple Airlines logo]()
$903
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 10/16:43 pm -
3 stops55h 32m
Thu 10/1512:30 pm -
1 stop17h 25m
Deal found 8/13![United Airlines logo]()
$905
This KLM deal was found by Cheapflights users on 8/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:50 am -
1 stop15h 20m
Sat 9/191:05 pm -
1 stop18h 15m
Deal found 8/14![KLM logo]()
$913
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:50 am -
3 stops25h 35m
Tue 10/68:00 am -
2 stops20h 40m
Deal found 8/13![Multiple Airlines logo]()
$920
Best flights from Seattle to GalwayDiscover carefully curated flight deals from Seattle to Galway that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from Seattle to Galway that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am -
1 stop16h 30m
Tue 9/2912:30 pm -
3 stops33h 52m
Deal found 8/11![United Airlines logo]()
$821
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/205:00 am -
2 stops18h 30m
Tue 10/612:30 pm -
2 stops16h 45m
Deal found 8/13![United Airlines logo]()
$822
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/297:00 am -
1 stop19h 15m
Tue 10/612:30 pm -
1 stop17h 25m
Deal found 8/14![United Airlines logo]()
$830
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 10/46:43 pm -
3 stops31h 32m
Tue 10/1312:30 pm -
2 stops16h 45m
Deal found 8/13![United Airlines logo]()
$834
Last-minute flights from Seattle to GalwayDiscover last-minute flight deals from Seattle to Galway. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Galway. Data last updated August 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/307:00 am -
1 stop19h 15m
Sun 9/69:30 am -
1 stop17h 37m
Deal found 8/12![United Airlines logo]()
$973
This United deal was found by Cheapflights users on 8/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am -
1 stop16h 30m
Sat 9/2612:00 pm -
2 stops34h 17m
Deal found 8/12![Multiple Airlines logo]()
$939
This KLM deal was found by Cheapflights users on 8/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:50 am -
1 stop15h 20m
Sat 9/191:05 pm -
1 stop18h 15m
Deal found 8/14![KLM logo]()
$913
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am -
2 stops16h 30m
Tue 9/2912:30 pm -
3 stops33h 52m
Deal found 8/11![United Airlines logo]()
$821
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 9/205:00 am -
2 stops18h 30m
Tue 10/612:30 pm -
2 stops16h 45m
Deal found 8/13![United Airlines logo]()
$822
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:50 am -
3 stops25h 35m
Tue 10/68:00 am -
2 stops20h 40m
Deal found 8/13![Multiple Airlines logo]()
$920
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/287:00 am -
1 stop19h 15m
Mon 10/512:30 pm -
1 stop17h 25m
Deal found 8/13![United Airlines logo]()
$890
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/297:00 am -
1 stop19h 15m
Tue 10/612:30 pm -
1 stop17h 25m
Deal found 8/14![United Airlines logo]()
$830
One-way flights from Seattle to GalwaySearch for one-way flight options from Seattle to Galway. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from Seattle to Galway. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:25 pm -
3 stops32h 10m
Deal found 8/11![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 pm -
2 stops52h 55m
Deal found 8/11![Multiple Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:30 am -
1 stop18h 45m
Deal found 8/11![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:40 pm -
1 stop28h 30m
Deal found 8/11![Delta logo]()
$651
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 pm -
1 stop31h 00m
Deal found 8/13![Aer Lingus logo]()
$3,724
This BusinessClass deal was found by Cheapflights users on 8/13. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:20 am -
2 stops19h 00m
Deal found 8/13![British Airways logo]()
$3,891
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/26:43 pm -
3 stops31h 32m
Deal found 8/13![United Airlines logo]()
$4,633
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $821 (United Airlines) |
One-way from | $355 (Kiwi.com) |
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 August 15, 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
Cheapest round-trip
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Sun 9/13
7:00 am-7:30 am
1 stop16h 30m
Shannon
Tue 9/29
12:30 pm-2:22 pm
3 stops33h 52m
$821
Quickest round-trip
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Sun 9/20
5:00 am-7:30 am
2 stops18h 30m
Shannon
Tue 10/6
12:30 pm-9:15 pm
2 stops16h 45m
$822
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Tue 9/29
7:00 am-10:15 am
1 stop19h 15m
Shannon
Tue 10/6
12:30 pm-9:55 pm
1 stop17h 25m
$830
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Sun 10/4
6:43 pm-10:15 am
3 stops31h 32m
Shannon
Tue 10/13
12:30 pm-9:15 pm
2 stops16h 45m
$834
Cheapest one-way
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Sat 8/29
11:25 pm-3:35 pm
3 stops32h 10m
$355
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Wed 9/23
7:00 pm-7:55 am
2 stops52h 55m
$358
Quickest one-way
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Wed 9/23
7:30 am-10:15 am
1 stop18h 45m
$463
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Fri 10/2
8:20 pm-11:20 am
1 stop31h 00m
$3,724
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Fri 10/2
8:20 am-11:20 am
2 stops19h 00m
$3,891
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Fri 10/2
6:43 pm-10:15 am
3 stops31h 32m
$4,633
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.
SEA-SNN
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
SEA-G4W
SEA-SNN
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 August 15, 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.
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
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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.
Complete your trip
Complete your trip to Galway by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Galway by cabin class
Find flights from Seattle to Galway, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Galway flights
Browse other Seattle and Galway flight options. Last updated on August 15, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Galway flights
Consider these flights traveling from Seattle to Galway.
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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$468 | Average$549 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$592 | Average$1,100 | FlexibilityNo cancel fee | On-time69% |