$619+ Cheap flights from Seattle (SEA) to Galway, Ireland
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Oct 16 — Oct 231
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
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 September 16, 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 September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/67:00 am -
1 stop19h 15m
Fri 10/1612:30 pm -
1 stop17h 25m
Deal found 9/15![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 10/67:00 am -
1 stop19h 15m
Tue 10/1312:30 pm -
1 stop30h 24m
Deal found 9/12![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/1411:59 pm -
2 stops26h 16m
Wed 10/2112:30 pm -
1 stop17h 25m
Deal found 9/16![United Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/1211:59 pm -
2 stops26h 16m
Mon 10/1912:30 pm -
2 stops18h 29m
Deal found 9/14![United Airlines logo]()
$684
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/288:25 am -
2 stops17h 50m
Mon 10/512:30 pm -
2 stops35h 21m
Deal found 9/15![United Airlines logo]()
$700
This Expedia deal was found by Cheapflights users on 9/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:45 pm -
1 stop16h 40m
Mon 12/75:30 pm -
1 stop25h 55m
Deal found 9/13![British Airways logo]()
$783
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:45 pm -
1 stop14h 00m
Wed 11/188:05 pm -
1 stop23h 20m
Deal found 9/13![British Airways logo]()
$794
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:31 am -
2 stops17h 59m
Wed 11/48:05 pm -
1 stop23h 20m
Deal found 9/13![British Airways logo]()
$798
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 September 16, 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 September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 10/67:00 am -
1 stop19h 15m
Tue 10/1312:30 pm -
3 stops33h 47m
Deal found 9/12![United Airlines logo]()
$624
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/65:00 am -
2 stops21h 15m
Fri 10/1612:30 pm -
2 stops32h 18m
Deal found 9/15![United Airlines logo]()
$624
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/1411:14 pm -
2 stops27h 01m
Wed 10/2112:30 pm -
2 stops29h 32m
Deal found 9/14![United Airlines logo]()
$674
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/126:43 pm -
3 stops31h 32m
Mon 10/1912:30 pm -
2 stops18h 29m
Deal found 9/14![United Airlines logo]()
$684
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/288:25 am -
2 stops17h 50m
Mon 10/512:30 pm -
2 stops35h 21m
Deal found 9/15![United Airlines logo]()
$700
Last-minute flights from Seattle to GalwayDiscover last-minute flight deals from Seattle to Galway. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Galway. Data last updated September 16, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/288:25 am -
2 stops17h 50m
Mon 10/512:30 pm -
2 stops35h 21m
Deal found 9/15![United Airlines logo]()
$700
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:10 pm -
2 stops17h 25m
Mon 10/59:15 pm -
2 stops27h 55m
Deal found 9/12![Aer Lingus logo]()
$805
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/67:00 am -
1 stop19h 15m
Fri 10/1612:30 pm -
1 stop17h 25m
Deal found 9/15![United Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 10/67:00 am -
1 stop19h 15m
Tue 10/1312:30 pm -
1 stop30h 24m
Deal found 9/12![United Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/1211:59 pm -
2 stops26h 16m
Mon 10/1912:30 pm -
2 stops18h 29m
Deal found 9/14![United Airlines logo]()
$684
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/1411:59 pm -
2 stops26h 16m
Wed 10/2112:30 pm -
1 stop17h 25m
Deal found 9/16![United Airlines logo]()
$674
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:31 am -
2 stops17h 59m
Wed 11/48:05 pm -
1 stop23h 20m
Deal found 9/13![British Airways logo]()
$798
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 September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $619 (United Airlines) |
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 7,457,451 searches. Data last updated September 16, 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
Tue 10/6
7:00 am-10:15 am
1 stop19h 15m
Shannon
Tue 10/13
12:30 pm-2:17 pm
3 stops33h 47m
$624
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Tue 10/6
5:00 am-10:15 am
2 stops21h 15m
Shannon
Fri 10/16
12:30 pm-12:48 pm
2 stops32h 18m
$624
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Wed 10/14
11:14 pm-10:15 am
2 stops27h 01m
Shannon
Wed 10/21
12:30 pm-10:02 am
2 stops29h 32m
$674
Quickest round-trip
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 10/12
6:43 pm-10:15 am
3 stops31h 32m
Shannon
Mon 10/19
12:30 pm-10:59 pm
2 stops18h 29m
$684
SeattleShannon
SEA Seattle/Tacoma Intl - SNN Shannon
SEASNN
Seattle/Tacoma Intl
Mon 9/28
8:25 am-10:15 am
2 stops17h 50m
Shannon
Mon 10/5
12:30 pm-3:51 pm
2 stops35h 21m
$700
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 September 16, 2026.
Read reviews from past customers who have flown United 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.
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Boarding
7.7
Food
6.7
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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
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Complete your trip
Complete your trip to Galway by adding a car rental and/or hotel reservation to your travel itinerary.
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Seattle and Galway flights
Browse other Seattle and Galway flight options. Last updated on September 16, 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 September 16, 2026.
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Seattle to Galway flights
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Top airline flying from Seattle to Galway
Discover the top airline 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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$592 | Average$1,095 | FlexibilityNo cancel fee | On-time69% |