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Shannon

$516+ Cheap flights from Seattle (SEA) to Shannon (SNN)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SNN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Seattle to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$516
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$791
From Seattle/Tacoma Intl to Shannon
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 Shannon

Cheapest flights from Seattle to Shannon
Explore the most affordable flight options available from Seattle to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/61:30 pmSEA - SNN
1 stop13h 50mAmerican Airlines
Wed 8/137:40 amSNN - SEA
2 stops16h 20mAmerican Airlines
Deal found 7/1$516
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/512:20 amSEA - SNN
1 stop23h 10mUnited Airlines
Wed 8/1312:30 pmSNN - SEA
1 stop16h 58mUnited Airlines
Deal found 7/1$517
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 Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/137:15 amSEA - SNN
1 stop19h 55mAir France
Sun 7/201:05 pmSNN - SEA
1 stop17h 43mAir France
Deal found 7/3$782
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/137:20 amSEA - SNN
2 stops29h 15mMultiple Airlines
Sun 7/2011:20 amSNN - SEA
2 stops35h 35mMultiple Airlines
Deal found 7/3$903

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Shannon 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 3, 2025.
Use the filters below to find and compare flights from Seattle to Shannon that are best for you.

Fly from

Seattle

Fly to

Shannon

Route

Depart

Return

Price

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/6

1:30 pm-4:10 pm

1 stop18h 40m

Shannon

Wed 8/13

9:15 pm-11:35 am

1 stop22h 20m

$516

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/5

12:20 am-7:30 am

1 stop23h 10m

Shannon

Wed 8/13

12:30 pm-9:28 pm

1 stop16h 58m

$517

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

Sun 7/13

7:15 am-11:10 am

1 stop19h 55m

Shannon

Sun 7/20

1:05 pm-10:48 pm

1 stop17h 43m

$782

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 7/13

7:20 am-8:35 pm

2 stops29h 15m

Shannon

Sun 7/20

11:20 am-2:55 pm

2 stops35h 35m

$903

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Seattle to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon 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 Shannon

What is the cheapest month to book a flight from Seattle to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from Seattle to Shannon, Clare (average of $533). Flying from Seattle to Shannon, Clare 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.

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

Find hourly flight availability from Seattle to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from Seattle to Shannon, Clare by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Seattle to Shannon, Clare?

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

Travelers seeking maximum savings on their Seattle to Shannon, Clare 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 Shannon, Clare?

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. 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 Shannon. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Seattle to Shannon, such as Air France, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.5
Good
1,465 reviews
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
United Airlines
7.4
Good
8,861 reviews
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
American Airlines
7.2
Good
10,000 reviews
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
9,681 reviews
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
British Airways
6.6
Okay
7,093 reviews
Air France
7.5
Good
1,465 reviews

Comfort

7.4

Entertainment

7.0

Boarding

7.4

Food

7.0

Overall

7.5

Crew

8.2

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Shannon, Clare round-trip?

    Currently priced at $516, American Airlines will fly you from Seattle to Shannon, Clare and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Air Canada - these airlines can fly you to your destination from $517 and $716, respectively. American Airlines is currently priced 39% below the average price you’ll pay for this route.

  • Can I find deals for flights from Seattle to Shannon that include hotel bookings?

    Yes. In addition to deals on Seattle to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Shannon.

  • Can I find deals for business class flights from Seattle to Shannon?

    Yes. Cheapflights offers flight deals from Seattle to Shannon 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 Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Shannon, Clare (average of $533). Flying from Seattle to Shannon, Clare 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.

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Top 4 airlines flying from Seattle to Shannon

Discover the top 4 airlines that operate flights from Seattle to Shannon. 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 3, 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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