Cheap flights from Seattle (SEA) to Shannon (SNN) from $453

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 9/26. 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
May 29 — Jun 51

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 May 24, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$533

One-way from

$453
High demand for flights, 21% potential price rise
Best time to find cheap flights, 30% 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 Monday, 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?

January is one of the best times of the year to fly to Shannon from Seattle. Prices for January average $908 per person but you can even find prices for as low as $556. The most expensive prices can be found in the month of December. Opting for a January flight can save you 26% on your journey compared to booking in December

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

Unlike in the evening, when flights are generally more expensive, you can save up to 27% 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 2,725,499 searches. Data last updated May 24, 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 10/11:45 pmSEA - SNN
2 stops18h 25mAmerican Airlines
Tue 10/157:40 amSNN - SEA
2 stops23h 10mAmerican Airlines
Deal found 5/23$563
Tue 10/17:40 pmSEA - SNN
1 stop16h 55mAmerican Airlines
Tue 10/159:25 pmSNN - SEA
1 stop22h 10mAmerican Airlines
Deal found 5/23$749
Mon 7/15:10 amSEA - SNN
2 stops27h 00mAmerican Airlines
Sun 7/79:25 pmSNN - SEA
2 stops32h 33mAmerican Airlines
Deal found 5/23$944
Fri 9/2011:59 pmSEA - SNN
2 stops21h 36mAmerican Airlines
Sat 12/217:45 amSNN - SEA
1 stop17h 00mAmerican Airlines
Deal found 5/23$966
Fri 9/2011:59 pmSEA - SNN
2 stops21h 36mAmerican Airlines
Sat 12/212:45 pmSNN - SEA
2 stops29h 17mAmerican Airlines
Deal found 5/23$967
Sun 6/301:14 amSEA - SNN
2 stops20h 51mAmerican Airlines
Sun 7/79:25 pmSNN - SEA
2 stops32h 33mAmerican Airlines
Deal found 5/23$1,135
Fri 6/71:14 amSEA - SNN
2 stops20h 51mAmerican Airlines
Fri 6/212:50 pmSNN - SEA
2 stops39h 07mAmerican Airlines
Deal found 5/23$1,244
Tue 6/181:14 amSEA - SNN
2 stops20h 21mAmerican Airlines
Wed 6/267:40 amSNN - SEA
2 stops22h 17mAmerican Airlines
Deal found 5/23$2,108

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 2,725,499 searches. Data last updated May 24, 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 9/247:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Fri 10/412:30 pmSNN - SEA
1 stop15h 01mUnited Airlines
Deal found 5/23$661
Tue 10/111:50 amSEA - SNN
1 stop14h 40mUnited Airlines
Tue 10/1512:30 pmSNN - SEA
2 stops18h 35mUnited Airlines
Deal found 5/23$726
Sat 7/135:05 amSEA - SNN
2 stops18h 25mUnited Airlines
Sat 7/2012:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 5/23$836
Sun 6/3012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sun 7/79:30 amSNN - SEA
2 stops30h 32mUnited Airlines
Deal found 5/23$1,047
Thu 6/1312:25 amSEA - SNN
1 stop23h 05mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/23$1,057
Fri 6/147:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Fri 6/2112:30 pmSNN - SEA
2 stops27h 27mUnited Airlines
Deal found 5/23$1,061
Sun 6/3012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sun 7/79:30 amSNN - SEA
1 stop17h 12mUnited Airlines
Deal found 5/23$1,139
Thu 6/1312:25 amSEA - SNN
2 stops26h 05mUnited Airlines
Fri 6/2112:30 pmSNN - SEA
2 stops27h 27mUnited Airlines
Deal found 5/23$1,148

Cheap Seattle to Shannon flights in May & June 2024

Find cheap flight options from Seattle to Shannon specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,725,499 searches. Prices were last updated on May 24, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in May and June 2024. More deals are always being added, so be sure to check back regularly.
Sat 6/811:00 pmSEA - SNN
1 stop27h 50mDelta
Fri 6/2112:50 pmSNN - SEA
1 stop17h 35mDelta
Deal found 5/23$990
Sat 6/811:00 pmSEA - SNN
1 stop27h 50mDelta
Fri 6/2112:50 pmSNN - SEA
1 stop17h 35mDelta
Deal found 5/22$995
Sun 6/3012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sun 7/79:30 amSNN - SEA
2 stops30h 32mUnited Airlines
Deal found 5/23$1,047
Thu 6/1312:25 amSEA - SNN
1 stop23h 05mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/23$1,057
Sat 6/810:53 amSEA - SNN
2 stops15h 37mUnited Airlines
Fri 6/219:30 amSNN - SEA
2 stops21h 20mUnited Airlines
Deal found 5/22$1,061
Sun 6/301:14 amSEA - SNN
2 stops20h 51mAmerican Airlines
Sun 7/79:25 pmSNN - SEA
2 stops30h 23mAmerican Airlines
Deal found 5/22$1,135
Sun 6/3012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sun 7/79:30 amSNN - SEA
1 stop17h 12mUnited Airlines
Deal found 5/23$1,139
Thu 6/1312:25 amSEA - SNN
2 stops26h 05mUnited Airlines
Fri 6/2112:30 pmSNN - SEA
2 stops27h 27mUnited Airlines
Deal found 5/23$1,148
Sun 6/3012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sun 7/79:30 amSNN - SEA
2 stops30h 32mUnited Airlines
Deal found 5/22$1,226

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 2,725,499 searches. Data last updated May 24, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in May and June 2024. More deals are always being added, so be sure to check back regularly.
Sun 8/257:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Wed 9/49:30 amSNN - SEA
2 stops23h 53mUnited Airlines
Deal found 5/22$568
Tue 9/247:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Fri 10/412:30 pmSNN - SEA
1 stop15h 01mUnited Airlines
Deal found 5/23$661
Sun 8/257:20 amSEA - SNN
1 stop19h 30mKLM
Wed 9/412:50 pmSNN - SEA
1 stop17h 33mKLM
Deal found 5/22$705
Tue 9/246:45 amSEA - SNN
2 stops16h 45mUnited Airlines
Fri 10/412:30 pmSNN - SEA
2 stops18h 35mUnited Airlines
Deal found 5/23$726
Sat 8/241:14 amSEA - SNN
2 stops20h 21mAmerican Airlines
Wed 9/49:25 pmSNN - SEA
1 stop28h 20mAmerican Airlines
Deal found 5/22$765
Sat 8/241:14 amSEA - SNN
2 stops20h 21mAmerican Airlines
Wed 9/41:45 pmSNN - SEA
2 stops17h 05mAmerican Airlines
Deal found 5/22$767
Fri 9/277:00 pmSEA - SNN
2 stops31h 30mUnited Airlines
Sun 10/612:30 pmSNN - SEA
2 stops29h 22mUnited Airlines
Deal found 5/22$792
Sat 7/135:05 amSEA - SNN
2 stops18h 25mUnited Airlines
Sat 7/2012:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 5/23$836
Fri 9/276:36 amSEA - SNN
2 stops14h 59mAmerican Airlines
Sun 10/69:25 pmSNN - SEA
1 stop22h 10mAmerican Airlines
Deal found 5/22$865

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 2,725,499 searches. Data last updated May 24, 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.
Thu 9/263:50 pmSEA - SNN
2 stops22h 25mMultiple Airlines
Deal found 5/23$453
Thu 9/267:20 amSEA - SNN
1 stop19h 30mKLM
Deal found 5/23$550
Thu 9/266:45 amSEA - SNN
3 stops19h 45mUnited Airlines
Deal found 5/23$618

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 2,725,499 searches. Data last updated May 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$563 - $1,435

Route

Depart

Return

Price

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/1

2 stops18h 25m

Shannon

Tue 10/15

2 stops23h 10m

$563

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 9/24

1 stop16h 30m

Shannon

Fri 10/4

1 stop15h 01m

$661

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/1

1 stop14h 40m

Shannon

Tue 10/15

2 stops18h 35m

$726

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/1

1 stop16h 55m

Shannon

Tue 10/15

1 stop22h 10m

$749

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/13

2 stops18h 25m

Shannon

Sat 7/20

2 stops29h 19m

$836

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 7/13

1 stop19h 40m

Shannon

Sat 7/20

1 stop17h 35m

$984

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 6/8

1 stop27h 50m

Shannon

Fri 6/21

1 stop17h 35m

$990

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 9/20

1 stop13h 50m

Shannon

Sat 12/21

1 stop17h 00m

$1,110

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 9/20

2 stops24h 05m

Shannon

Sat 12/21

3 stops22h 11m

$1,435

Flights are sorted by cheapest first

Deals found on 5/23

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 May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Shannon 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.
Search Deals

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.

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 May 24, 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 Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very good
10,561 reviews
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.9
Good
1,549 reviews
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.4
Good
10,845 reviews
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.3
Good
14,388 reviews
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

6.8
Okay
6,788 reviews
8.0
Very good
10,561 reviews

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

8.0

Crew

8.6

Food

7.4

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

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 $563, but on average you can expect to pay $1,021.

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

    According to our current data, American Airlines ($563), United Airlines ($661), and Delta ($984) offers the cheapest pricing from Seattle to Shannon. Users have found that American Airlines is 37% cheaper than the other options available to this destination.

  • 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.

  • Can I find deals for flights from Seattle to Shannon that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Shannon flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Shannon with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Shannon flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Seattle to Shannon that allow pets onboard?

    Many airlines flying from Seattle to Shannon offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Shannon?

    Yes, you can often find last-minute deals on Seattle to Shannon flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Shannon flight deals updated?

    The Seattle to Shannon flight deals you see on this page were last updated on 5/23.

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

  • When is the best time to book a flight from Seattle to Shannon?

    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 $1,023). 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 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 2,725,499 searches. Data last updated May 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$549Average$929FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest$556Average$813FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest$573Average$901FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$631Average$894FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$754Average$938FlexibilityNo 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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