Cheap flights from Seattle (SEA) to Shannon (SNN) from $382

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — SNN
Mar 24 — Mar 311

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 March 19, 2024.

Popular in

December

Cheapest in

February

Round-trip from

$533

One-way from

$463
High demand for flights, 26% potential price rise
Best time to find cheap flights, 38% potential price drop
From Seattle/Tacoma Intl to Shannon
One-way flight from Seattle/Tacoma Intl to Shannon

What is the cheapest day to fly round-trip from Seattle to Shannon?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Seattle to Shannon?

February is one of the best times of the year to fly to Shannon from Seattle. Prices for February average $908 per person but you can even find prices for as low as $561. The most expensive prices can be found in the month of December. Opting for a February flight can save you 35% on your journey compared to booking in December

When is the cheapest time to fly from Seattle to Shannon (SEA - SNN)?

Unlike at noon, when flights are generally more expensive, you can save up to 28% on flights from Seattle to Shannon by exploring options for tickets in the afternoon.

Cheap American Airlines flights from Seattle to Shannon

Explore cheap flight options specifically provided by American Airlines for the route between Seattle and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Consider these cheap American Airlines flights we've found departing from Seattle to Shannon. Deals update often to give you more flight options matching your criteria
Tue 4/161:32 pmSEA - SNN
2 stops23h 03mAmerican Airlines
Tue 4/239:25 pmSNN - SEA
2 stops32h 45mAmerican Airlines
Deal found 3/17$523
Sat 9/147:40 pmSEA - SNN
1 stop12h 30mAmerican Airlines
Thu 9/269:25 pmSNN - SEA
2 stops31h 46mAmerican Airlines
Deal found 3/18$835
Wed 4/31:30 pmSEA - SNN
1 stop18h 40mAmerican Airlines
Thu 4/117:40 amSNN - SEA
1 stop18h 05mAmerican Airlines
Deal found 3/18$947
Wed 4/31:36 pmSEA - SNN
2 stops18h 34mAmerican Airlines
Thu 4/119:25 pmSNN - SEA
1 stop22h 10mAmerican Airlines
Deal found 3/18$951
Tue 7/1610:56 pmSEA - SNN
2 stops37h 39mAmerican Airlines
Tue 7/239:25 pmSNN - SEA
2 stops32h 39mAmerican Airlines
Deal found 3/17$952
Sat 9/141:50 pmSEA - SNN
1 stop18h 20mAmerican Airlines
Thu 9/267:40 amSNN - SEA
1 stop18h 05mAmerican Airlines
Deal found 3/18$974
Wed 6/1912:20 amSEA - SNN
2 stops31h 50mAmerican Airlines
Sun 6/309:25 pmSNN - SEA
2 stops51h 46mAmerican Airlines
Deal found 3/18$1,497
Wed 8/2811:33 amSEA - SNN
2 stops20h 37mAmerican Airlines
Wed 9/189:25 pmSNN - SEA
2 stops31h 46mAmerican Airlines
Deal found 3/17$3,491
Tue 8/2712:59 amSEA - SNN
2 stops31h 11mAmerican Airlines
Wed 9/187:40 amSNN - SEA
2 stops21h 31mAmerican Airlines
Deal found 3/17$3,545

Cheap United Airlines flights from Seattle to Shannon

Explore cheap flight options specifically provided by United Airlines for the route between Seattle and Shannon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
To aid your search, here are some of the cheapest United Airlines flights we've found from Seattle to Shannon. Deals are refreshing constantly so come back soon for more options.
Tue 4/1612:30 pmSEA - SNN
1 stop14h 00mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$528
Tue 4/166:38 amSEA - SNN
3 stops19h 52mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$599
Sun 6/25:05 amSEA - SNN
2 stops18h 25mUnited Airlines
Sat 6/159:30 amSNN - SEA
2 stops21h 20mUnited Airlines
Deal found 3/18$836
Tue 7/161:37 pmSEA - SNN
1 stop12h 53mUnited Airlines
Tue 7/2312:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 3/17$901
Sat 9/142:00 pmSEA - SNN
2 stops33h 30mUnited Airlines
Thu 9/2612:30 pmSNN - SEA
3 stops34h 35mUnited Airlines
Deal found 3/18$916
Tue 7/1612:05 pmSEA - SNN
1 stop14h 25mUnited Airlines
Tue 7/2312:30 pmSNN - SEA
1 stop16h 51mUnited Airlines
Deal found 3/17$994
Sat 9/146:45 amSEA - SNN
3 stops19h 45mUnited Airlines
Thu 9/2612:30 pmSNN - SEA
3 stops34h 35mUnited Airlines
Deal found 3/18$995
Mon 7/1512:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Tue 7/2312:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 3/17$1,101
Thu 6/207:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Sun 6/309:30 amSNN - SEA
2 stops32h 31mUnited Airlines
Deal found 3/18$1,166

Cheap Seattle to Shannon flights in March & April 2024

Find cheap flight options from Seattle to Shannon specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in March and April 2024. More deals are always being added, so be sure to check back regularly.
Tue 4/161:32 pmSEA - SNN
2 stops23h 03mAmerican Airlines
Tue 4/239:25 pmSNN - SEA
2 stops32h 45mAmerican Airlines
Deal found 3/17$523
Tue 4/1612:30 pmSEA - SNN
1 stop14h 00mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$528
Tue 4/166:38 amSEA - SNN
3 stops19h 52mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$599
Wed 4/175:44 amSEA - SNN
3 stops20h 46mUnited Airlines
Wed 4/2412:30 pmSNN - SEA
2 stops18h 15mUnited Airlines
Deal found 3/17$643
Wed 4/31:10 pmSEA - SNN
2 stops19h 00mAir Canada
Thu 4/117:40 amSNN - SEA
2 stops18h 47mAir Canada
Deal found 3/17$680
Wed 4/31:10 pmSEA - SNN
2 stops19h 00mAir Canada
Thu 4/117:40 amSNN - SEA
3 stops33h 43mAir Canada
Deal found 3/17$883
Wed 4/177:40 pmSEA - SNN
1 stop16h 55mBritish Airways
Wed 4/249:25 pmSNN - SEA
1 stop28h 20mBritish Airways
Deal found 3/17$935
Wed 4/31:30 pmSEA - SNN
1 stop13h 50mAmerican Airlines
Thu 4/119:25 pmSNN - SEA
1 stop22h 10mAmerican Airlines
Deal found 3/17$947
Wed 4/31:36 pmSEA - SNN
2 stops18h 34mAmerican Airlines
Thu 4/119:25 pmSNN - SEA
1 stop22h 10mAmerican Airlines
Deal found 3/17$951

Seattle to Shannon 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Shannon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in March and April 2024. More deals are always being added, so be sure to check back regularly.
Tue 4/161:32 pmSEA - SNN
2 stops23h 03mAmerican Airlines
Tue 4/239:25 pmSNN - SEA
2 stops32h 45mAmerican Airlines
Deal found 3/17$523
Tue 4/1612:30 pmSEA - SNN
1 stop14h 00mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$528
Tue 10/111:33 amSEA - SNN
2 stops20h 37mAmerican Airlines
Mon 10/79:25 pmSNN - SEA
2 stops29h 37mAmerican Airlines
Deal found 3/17$564
Tue 4/166:38 amSEA - SNN
3 stops19h 52mUnited Airlines
Tue 4/2312:30 pmSNN - SEA
2 stops20h 28mUnited Airlines
Deal found 3/17$599
Thu 9/511:15 amSEA - SNN
1 stop15h 35mDelta
Wed 9/1112:50 pmSNN - SEA
1 stop17h 30mDelta
Deal found 3/17$639
Wed 4/175:44 amSEA - SNN
3 stops20h 46mUnited Airlines
Wed 4/2412:30 pmSNN - SEA
2 stops18h 15mUnited Airlines
Deal found 3/17$643
Tue 10/112:08 pmSEA - SNN
1 stop14h 22mUnited Airlines
Mon 10/712:30 pmSNN - SEA
2 stops29h 18mUnited Airlines
Deal found 3/17$663
Wed 4/31:10 pmSEA - SNN
2 stops19h 00mAir Canada
Thu 4/117:40 amSNN - SEA
2 stops18h 47mAir Canada
Deal found 3/17$680
Mon 5/2710:56 pmSEA - SNN
1 stop27h 54mDelta
Mon 6/1012:50 pmSNN - SEA
1 stop17h 33mDelta
Deal found 3/17$684

One-way flights to Shannon from Seattle

Search for one-way flight options from Seattle to Shannon. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Some of the best available deals we've found on one-way flights from Seattle to Shannon. Users needing a return flight from Seattle to Shannon should utilize the search form above.
Tue 4/28:41 pmSEA - SNN
3 stops35h 29mMultiple Airlines
Deal found 3/17$382
Wed 4/109:38 amSEA - SNN
3 stops50h 57mMultiple Airlines
Deal found 3/17$451
Tue 4/97:40 pmSEA - SNN
1 stop12h 30mBritish Airways
Deal found 3/17$463
Wed 4/101:32 pmSEA - SNN
2 stops23h 03mAmerican Airlines
Deal found 3/17$467
Wed 4/107:40 pmSEA - SNN
1 stop16h 55mMultiple Airlines
Deal found 3/17$472
Tue 4/21:30 pmSEA - SNN
1 stop23h 05mMultiple Airlines
Deal found 3/17$477
Tue 4/212:32 pmSEA - SNN
2 stops24h 03mAmerican Airlines
Deal found 3/17$478
Wed 4/33:20 pmSEA - SNN
2 stops16h 50mAir Canada
Deal found 3/18$529
Mon 4/112:59 amSEA - SNN
2 stops31h 11mAmerican Airlines
Deal found 3/17$539

Find flights from Seattle to Shannon within your budget

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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$523 - $1,164

Route

Depart

Return

Price

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/16

2 stops23h 03m

Shannon

Tue 4/23

2 stops32h 45m

$523

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/16

1 stop14h 00m

Shannon

Tue 4/23

2 stops20h 28m

$528

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/16

3 stops19h 52m

Shannon

Tue 4/23

2 stops20h 28m

$599

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 6/2

1 stop19h 40m

Shannon

Sat 6/15

1 stop17h 33m

$679

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/3

2 stops19h 00m

Shannon

Thu 4/11

2 stops18h 47m

$680

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 9/14

2 stops33h 00m

Shannon

Thu 9/26

2 stops21h 35m

$756

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 6/2

2 stops19h 30m

Shannon

Sat 6/15

1 stop17h 33m

$810

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 9/14

1 stop12h 30m

Shannon

Thu 9/26

2 stops31h 46m

$835

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 7/30

1 stop12h 30m

Shannon

Wed 8/7

2 stops20h 04m

$1,164

Flights are sorted by cheapest first

Deals found on 3/17

When is the cheapest time to fly from Seattle to Shannon?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Shannon. Price data was last updated on March 10, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Shannon flight should consider departing on Wednesday 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.
Search Deals

Average price of flights to Shannon by month

Plan your trip from Seattle to Shannon by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Shannon is currently $473 while a round-trip flight costs $730. Price data was last updated on March 17, 2024.

Currently, February is the cheapest month in which you can book a flight from Seattle to Shannon (average of $533). Flying from Seattle to Shannon in June is currently the most expensive (average of $1,095). 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.

January

$621

February

$533

March

$614

April

$757

May

$878

June

$1,095

July

$1,069

August

$957

September

$832

October

$656

November

$546

December

$650

Temperature and rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average temperature and rainfall totals by month.

SNN

Temperature

42.8 - 60.8 °F

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 March 19, 2024.
To help decide which airline to fly from Seattle to Shannon, see what other customers have to say about American Airlines, United Airlines and British Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,551 reviews
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,720 reviews
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,602 reviews
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
15,312 reviews
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

7.0
Good
6,717 reviews
8.1
Very good
11,551 reviews

Entertainment

8.1

Boarding

8.2

Comfort

7.9

Food

7.5

Crew

8.6

Overall

8.1

Reviews

1 / 10

It was a good experience other than a short delay.

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.
  • Can I find flights from Seattle to Shannon for under $600 on Cheapflights?

    Yes, there are multiple flights from Seattle to Shannon for under $600. The cheapest flight booked recently is on American Airlines for just $523, but on average you can expect to pay $841.

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

    According to our current data, American Airlines ($523), United Airlines ($528), and Delta ($679) offers the cheapest pricing from Seattle to Shannon. Users have found that American Airlines is 42% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $463. American Airlines flights start at $467 while deals on Air Canada start at $529 one-way.

  • What are the most popular airlines that fly from Seattle to Shannon?

  • What does SEA to SNN mean?

    This is defined as Seattle/Tacoma Intl Airport (SEA) and Shannon Airport (SNN). Codes like Shannon Airport are often used to just call airports uniquely.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Shannon
See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Seattle to Shannon

Discover the top 5 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$556Average$813FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest$573Average$897FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$654Average$929FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$686Average$894FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$757Average$942FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Search flights from Seattle to Shannon by cabin class

Find flights from Seattle to Shannon, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Shannon?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Shannon. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Shannon?

Cheapflights helps you find that perfect flight to Shannon from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Shannon with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Shannon flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Shannon become cheaper?

Of course! You can now track prices for flights from Seattle to Shannon and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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