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$479+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap 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 1, 2025.

Round-trip from

$479
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$791
From Seattle/Tacoma Intl to Galway
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find 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 July 1, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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 8/212:20 amSEA - SNN
1 stop23h 10mUnited Airlines
Tue 8/1912:30 pmSNN - SEA
2 stops31h 01mUnited Airlines
Deal found 6/30$479
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/31:30 pmSEA - SNN
1 stop13h 50mAmerican Airlines
Tue 8/199:15 pmSNN - SEA
1 stop22h 20mAmerican Airlines
Deal found 6/30$487
This Delta deal was found by Cheapflights users on 6/30. 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.
Mon 7/287:15 amSEA - SNN
1 stop19h 55mDelta
Mon 8/41:05 pmSNN - SEA
1 stop17h 43mDelta
Deal found 6/30$577
This Air Canada deal was found by Cheapflights users on 7/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:20 amSEA - SNN
2 stops20h 00mAir Canada
Thu 11/137:50 amSNN - SEA
3 stops22h 16mAir Canada
Deal found 7/1$716
This British Airways deal was found by Cheapflights users on 7/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/151:30 pmSEA - SNN
1 stop23h 05mBritish Airways
Thu 11/138:05 pmSNN - SEA
1 stop23h 15mBritish Airways
Deal found 7/1$718
This SmartFares deal was found by Cheapflights users on 6/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1312:46 amSEA - SNN
2 stops31h 24mAer Lingus
Thu 8/217:10 amSNN - SEA
2 stops18h 40mAer Lingus
Deal found 6/30$942
This Mytrip deal was found by Cheapflights users on 6/30. 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.
Mon 7/287:00 pmSEA - SNN
2 stops19h 05mMultiple Airlines
Mon 8/41:45 pmSNN - SEA
3 stops34h 40mMultiple Airlines
Deal found 6/30$1,112

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 1, 2025.
Use the filters below to find and compare flights from Seattle to Galway that are best for you.

Fly from

Seattle

Fly to

Galway

Route

Depart

Return

Price

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/2

12:20 am-7:30 am

1 stop23h 10m

Shannon

Tue 8/19

12:30 pm-11:31 am

2 stops31h 01m

$479

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/3

1:30 pm-11:20 am

1 stop13h 50m

Shannon

Tue 8/19

9:15 pm-11:35 am

1 stop22h 20m

$487

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/28

7:15 am-11:10 am

1 stop19h 55m

Shannon

Mon 8/4

1:05 pm-10:48 pm

1 stop17h 43m

$577

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 7/15

7:20 am-11:20 am

2 stops20h 00m

Shannon

Thu 11/13

7:50 am-10:06 pm

3 stops22h 16m

$716

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 7/15

1:30 pm-8:35 pm

1 stop23h 05m

Shannon

Thu 11/13

8:05 pm-11:20 am

1 stop23h 15m

$718

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/13

12:46 am-4:10 pm

2 stops31h 24m

Shannon

Thu 8/21

7:10 am-5:50 pm

2 stops18h 40m

$942

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/28

7:00 pm-10:05 pm

2 stops19h 05m

Shannon

Mon 8/4

1:45 pm-4:25 pm

3 stops34h 40m

$1,112

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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

What is the cheapest time of day to fly from SEA to G4W?

Find hourly flight availability from Seattle to Galway. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

When flying from Seattle to Galway, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Galway?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Galway. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Galway flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Seattle to Galway?

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 1, 2025.
Read reviews from past customers who have flown Delta, 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.
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,858 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,665 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,140 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 4 different airlines.

  • 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.

  • What is the cheapest month to book a flight from Seattle to Galway?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Galway (average of $533). Flying from Seattle to Galway in June is currently the most expensive (average of $938). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Seattle to Galway

Discover the top 4 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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$541Average$758FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$593Average$750FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$703Average$881FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$703Average$797FlexibilityNo cancel feeOn-timeN/A

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