$334+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Aug 6 — Aug 131
Round-trip
1 adult, Economy
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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
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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 July 7, 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 July 7, 2026.
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/31:05 pm
SEA
- SNN
1 stop13h 10m
United Airlines
Mon 8/249:30 am
SNN
- SEA
1 stop17h 37m
United Airlines
Deal found 7/6![United Airlines logo]()
$732
This Ovago deal was found by Cheapflights users on 7/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
SEA
- SNN
1 stop16h 30m
Lufthansa
Sat 8/2912:00 pm
SNN
- SEA
1 stop31h 55m
Lufthansa
Deal found 7/3![Lufthansa logo]()
$779
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/610:52 am
SEA
- SNN
1 stop12h 38m
United Airlines
Thu 8/1312:30 pm
SNN
- SEA
1 stop19h 14m
United Airlines
Deal found 7/7![United Airlines logo]()
$790
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/315:00 am
SEA
- SNN
2 stops21h 15m
United Airlines
Fri 8/149:30 am
SNN
- SEA
1 stop14h 37m
United Airlines
Deal found 7/2![United Airlines logo]()
$794
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/307:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Thu 8/69:30 am
SNN
- SEA
1 stop21h 26m
United Airlines
Deal found 7/2![United Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/27:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Sun 8/239:30 am
SNN
- SEA
2 stops34h 50m
United Airlines
Deal found 7/2![United Airlines logo]()
$892
This United Airlines deal was found by Cheapflights users on 7/6. 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 9/110:58 pm
SEA
- SNN
1 stop27h 17m
United Airlines
Tue 9/89:30 am
SNN
- SEA
1 stop17h 45m
United Airlines
Deal found 7/6![United Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 7/6. 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 9/110:58 pm
SEA
- SNN
1 stop27h 17m
United Airlines
Mon 9/149:30 am
SNN
- SEA
3 stops36h 54m
United Airlines
Deal found 7/6![United Airlines logo]()
$898
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 July 7, 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 July 7, 2026.
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/31:05 pm
SEA
- SNN
1 stop13h 10m
United Airlines
Mon 8/249:30 am
SNN
- SEA
1 stop17h 37m
United Airlines
Deal found 7/6![United Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/207:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Thu 8/279:30 am
SNN
- SEA
2 stops21h 34m
United Airlines
Deal found 7/6![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/48:35 am
SEA
- SNN
2 stops17h 40m
United Airlines
Tue 8/259:30 am
SNN
- SEA
2 stops20h 01m
United Airlines
Deal found 7/6![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/185:00 am
SEA
- SNN
2 stops21h 15m
United Airlines
Tue 8/259:30 am
SNN
- SEA
1 stop14h 37m
United Airlines
Deal found 7/4![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/315:00 am
SEA
- SNN
2 stops21h 15m
United Airlines
Fri 8/149:30 am
SNN
- SEA
1 stop14h 37m
United Airlines
Deal found 7/2![United Airlines logo]()
$794
Last-minute flights from Seattle to GalwayDiscover last-minute flight deals from Seattle to Galway. Data last updated July 7, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Galway. Data last updated July 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/6. 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 7/207:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Mon 8/312:30 pm
SNN
- SEA
1 stop19h 14m
United Airlines
Deal found 7/6![United Airlines logo]()
$917
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/307:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Thu 8/69:30 am
SNN
- SEA
1 stop21h 26m
United Airlines
Deal found 7/2![United Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 7/2. 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 7/315:00 am
SEA
- SNN
2 stops21h 15m
United Airlines
Fri 8/149:30 am
SNN
- SEA
1 stop14h 37m
United Airlines
Deal found 7/2![United Airlines logo]()
$794
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/27:00 am
SEA
- SNN
1 stop16h 30m
United Airlines
Sun 8/239:30 am
SNN
- SEA
2 stops34h 50m
United Airlines
Deal found 7/2![United Airlines logo]()
$892
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/31:05 pm
SEA
- SNN
1 stop13h 10m
United Airlines
Mon 8/249:30 am
SNN
- SEA
1 stop17h 37m
United Airlines
Deal found 7/6![United Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/610:52 am
SEA
- SNN
1 stop12h 38m
United Airlines
Thu 8/1312:30 pm
SNN
- SEA
1 stop19h 14m
United Airlines
Deal found 7/7![United Airlines logo]()
$790
This Ovago deal was found by Cheapflights users on 7/3. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
SEA
- SNN
1 stop16h 30m
Lufthansa
Sat 8/2912:00 pm
SNN
- SEA
1 stop31h 55m
Lufthansa
Deal found 7/3![Lufthansa logo]()
$779
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 July 7, 2026.
Search for one-way flight options from Seattle to Galway. Find affordable one-way fares based on user searches. Data last updated July 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/1511:25 pm
SEA
- SNN
3 stops52h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 7/2. 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
SEA
- SNN
2 stops17h 50m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 7/5. 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.
Tue 8/411:25 pm
SEA
- SNN
3 stops50h 30m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 8/111:25 pm
SEA
- SNN
2 stops37h 10m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$394
This Cheapflightsfares deal was found by Cheapflights users on 7/6. 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.
Sat 7/2511:21 pm
SEA
- SNN
1 stop22h 04m
Aer Lingus
Deal found 7/6![Aer Lingus logo]()
$453
This Delta deal was found by Cheapflights users on 7/5. 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 8/47:15 am
SEA
- SNN
1 stop19h 55m
Delta
Deal found 7/5![Delta logo]()
$463
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/15:15 pm
SEA
- SNN
1 stop30h 15m
United Airlines
Deal found 7/2![United Airlines logo]()
$478
This Justfly.com deal was found by Cheapflights users on 7/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:21 pm
SEA
- SNN
1 stop22h 04m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$481
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 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $732 (United Airlines) |
One-way from | $334 (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 July 7, 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
Quickest round-trip
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Mon 8/3
1:05 pm-10:15 am
1 stop13h 10m
Shannon
Mon 8/24
9:30 am-7:07 pm
1 stop17h 37m
$732
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Thu 8/20
7:00 am-7:30 am
1 stop16h 30m
Shannon
Thu 8/27
9:30 am-11:04 pm
2 stops21h 34m
$736
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
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Tue 8/18
5:00 am-10:15 am
2 stops21h 15m
Shannon
Tue 8/25
9:30 am-4:07 pm
1 stop14h 37m
$736
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Fri 7/31
5:00 am-10:15 am
2 stops21h 15m
Shannon
Fri 8/14
9:30 am-4:07 pm
1 stop14h 37m
$794
Cheapest one-way
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Thu 10/1
7:00 pm-8:50 pm
2 stops17h 50m
$338
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Tue 8/4
7:00 pm-1:30 pm
2 stops34h 30m
$367
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Sat 8/1
3:40 pm-9:45 am
3 stops34h 05m
$415
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Sat 7/25
11:21 pm-5:25 am
1 stop22h 04m
$453
SeattleShannon
SEA - SNN
SEASNN
Seattle/Tacoma Intl
Sat 8/15
9:40 pm-9:45 am
1 stop28h 05m
$459
Showing 1-10 of 14 resultsSorted 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 July 7, 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
6.0
GoodROHIT,Jun 2026
IND - EWR
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodROHIT,Jun 2026
IND - EWR
Entertainment
7.1
Crew
8.1
Food
6.7
Overall
7.4
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
6.0
GoodROHIT,Jun 2026
IND - EWR
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.
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 July 7, 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 July 7, 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 July 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$468 | Average$549 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$586 | Average$1,095 | FlexibilityNo cancel fee | On-time69% |