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$421+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$668
(United Airlines)

One-way from

$421
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$802
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. 11% potential increase in price ($114 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/17. 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 5/77:00 amSEA - SNN
2 stops19h 15mUnited Airlines
Fri 5/1612:30 pmSNN - SEA
3 stops33h 30mUnited Airlines
Deal found 4/17$707
This Mytrip deal was found by Cheapflights users on 4/17. 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 6/18:10 amSEA - SNN
3 stops23h 00mMultiple Airlines
Sun 6/811:20 amSNN - SEA
3 stops44h 50mMultiple Airlines
Deal found 4/17$804
This Delta deal was found by Cheapflights users on 4/17. 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 6/2810:58 pmSEA - SNN
1 stop28h 12mDelta
Wed 7/161:05 pmSNN - SEA
1 stop17h 48mDelta
Deal found 4/17$857
This Air Canada deal was found by Cheapflights users on 4/17. 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.
Sat 9/2712:10 pmSEA - SNN
2 stops39h 10mAir Canada
Sun 10/59:15 pmSNN - SEA
2 stops29h 21mAir Canada
Deal found 4/17$899
This Gurufare deal was found by Cheapflights users on 4/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:45 pmSEA - SNN
2 stops37h 20mBritish Airways
Fri 5/239:15 pmSNN - SEA
1 stop22h 20mBritish Airways
Deal found 4/17$959
This Gurufare deal was found by Cheapflights users on 4/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:35 pmSEA - SNN
1 stop13h 45mAer Lingus
Sun 10/59:15 pmSNN - SEA
1 stop22h 20mAer Lingus
Deal found 4/17$1,091
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 5/151:10 amSEA - SNN
2 stops20h 15mAmerican Airlines
Fri 5/239:15 pmSNN - SEA
1 stop22h 20mAmerican Airlines
Deal found 4/17$3,319

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 April 17, 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

Wed 5/7

7:00 am-10:15 am

2 stops19h 15m

Shannon

Fri 5/16

12:30 pm-2:00 pm

3 stops33h 30m

$707

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 6/1

8:10 am-3:10 pm

3 stops23h 00m

Shannon

Sun 6/8

11:20 am-12:10 am

3 stops44h 50m

$804

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 6/28

10:58 pm-11:10 am

1 stop28h 12m

Shannon

Wed 7/16

1:05 pm-10:53 pm

1 stop17h 48m

$857

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 9/27

12:10 pm-11:20 am

2 stops39h 10m

Shannon

Sun 10/5

9:15 pm-6:36 pm

2 stops29h 21m

$899

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 5/16

6:45 pm-4:05 pm

2 stops37h 20m

Shannon

Fri 5/23

9:15 pm-11:35 am

1 stop22h 20m

$959

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 9/27

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Sun 10/5

9:15 pm-11:35 am

1 stop22h 20m

$1,091

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/15

1:10 am-5:25 am

2 stops20h 15m

Shannon

Fri 5/23

9:15 pm-11:35 am

1 stop22h 20m

$3,319

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 6/24

7:05 am-7:50 pm

3 stops52h 45m

$421

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 6/1

10:55 am-7:30 am

1 stop12h 35m

$585

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 4/24

6:45 pm-11:50 am

2 stops57h 05m

$1,923

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 11 results
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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 April 17, 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 April 17, 2025.
To help decide which airline to fly from Seattle to Galway, see what other customers have to say about Delta, Air France and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.5
Good
1,435 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,143 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $1,923 and $2,763 on Aer Lingus and British Airways, 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

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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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$541Average$768FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$568Average$767FlexibilityNo cancel feeOn-time69%
Aer LingusCheapest$703Average$797FlexibilityNo cancel feeOn-timeN/A

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