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$365+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$699
(United)

One-way from

$365
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$859
Provider with most accurate pricing for Seattle/Tacoma Intl-Shannon flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Shannon flights.
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From Seattle/Tacoma Intl to Galway
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One-way flight from Seattle/Tacoma Intl to Galway
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Highest demand for flights based on searches. 17% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/26. 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.
Tue 4/221:35 pmSEA - SNN
2 stops18h 35mAmerican Airlines
Tue 4/297:40 amSNN - SEA
2 stops23h 29mAmerican Airlines
Deal found 3/26$646
This United deal was found by Cheapflights users on 3/25. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:55 amSEA - SNN
1 stop12h 35mUnited Airlines
Tue 9/3012:30 pmSNN - SEA
2 stops39h 40mUnited Airlines
Deal found 3/25$652
This oojo deal was found by Cheapflights users on 3/26. 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.
Tue 4/16:45 pmSEA - SNN
2 stops17h 50mAer Lingus
Wed 4/97:40 amSNN - SEA
2 stops17h 19mAer Lingus
Deal found 3/26$740
This Delta deal was found by Cheapflights users on 3/27. 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 6/3010:58 pmSEA - SNN
1 stop28h 12mDelta
Mon 7/141:05 pmSNN - SEA
1 stop17h 48mDelta
Deal found 3/27$777
This Air Canada deal was found by Cheapflights users on 3/26. 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 4/2210:25 amSEA - SNN
3 stops21h 45mAir Canada
Tue 4/297:40 amSNN - SEA
3 stops18h 48mAir Canada
Deal found 3/26$831
This Cheapflightsfares deal was found by Cheapflights users on 3/26. 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.
Tue 4/221:30 pmSEA - SNN
1 stop13h 50mBritish Airways
Tue 4/299:15 pmSNN - SEA
2 stops27h 44mBritish Airways
Deal found 3/26$834
This KLM deal was found by Cheapflights users on 3/27. 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.
Mon 6/3011:31 amSEA - SNN
1 stop15h 39mMultiple Airlines
Mon 7/141:05 pmSNN - SEA
2 stops18h 50mMultiple Airlines
Deal found 3/27$838

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 March 28, 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

Tue 9/2

7:34 pm-7:30 am

2 stops27h 56m

Shannon

Tue 9/23

9:30 am-3:32 pm

1 stop14h 02m

$635

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 4/18

1:35 pm-3:50 pm

2 stops18h 15m

Shannon

Thu 4/24

7:40 am-11:09 pm

2 stops23h 29m

$706

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 6/30

10:58 pm-11:10 am

1 stop28h 12m

Shannon

Mon 7/14

1:05 pm-10:53 pm

1 stop17h 48m

$777

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/12

8:20 pm-8:35 pm

1 stop16h 15m

Shannon

Mon 5/26

9:15 pm-11:10 am

1 stop21h 55m

$827

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 6/30

11:31 am-11:10 am

1 stop15h 39m

Shannon

Mon 7/14

1:05 pm-11:55 pm

2 stops18h 50m

$838

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 4/18

1:30 pm-3:50 pm

1 stop18h 20m

Shannon

Thu 4/24

7:40 am-6:20 pm

1 stop18h 40m

$872

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 4/25

10:25 am-3:50 pm

3 stops21h 25m

Shannon

Wed 4/30

9:15 pm-7:37 pm

2 stops30h 22m

$891

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 6/13

7:00 am-7:30 am

1 stop16h 30m

$585

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 6/13

1:45 pm-3:50 pm

3 stops18h 05m

$678

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 6/12

12:05 am-3:50 pm

2 stops31h 45m

$2,515

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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 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 $1,007). 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.

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 March 28, 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.

Rainfall in Galway by month

Plan your trip to Galway by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Galway ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Galway when rainfall is around 2.3 in.

Temperature in Galway by month

Plan your trip to Galway by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Galway, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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 March 28, 2025.
To help decide which airline to fly from Seattle to Galway, see what other customers have to say about United Airlines, American Airlines and Air Canada. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,603 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
8,981 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.0
Good
1,062 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.6
Okay
6,712 reviews
United Airlines
7.4
Good
8,603 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.0

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 3 different airlines.

  • What are the cheapest airlines to fly from Seattle to Galway one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $585. Users have also found prices from $701 and $3,303 on British Airways and American Airlines, respectively.

  • 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 $1,007). 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 3 airlines flying from Seattle to Galway

Discover the top 3 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$541Average$767FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$568Average$801FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$703Average$795FlexibilityNo cancel feeOn-timeN/A
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