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Cheap flights from Seattle (SEA) to Shannon (SNN) from $355

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 8/16. 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
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Shannon are usually found in January or April, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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 June 6, 2024.

Popular in

December

Cheapest in

January

Round-trip from

$533

One-way from

$453
High demand for flights, 21% potential price rise
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Best time to find cheap flights, 30% potential price drop
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From Seattle/Tacoma Intl to Shannon
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One-way flight from Seattle/Tacoma Intl to Shannon
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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.

How far in advance should I book a flight from Seattle to Shannon?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 52 days in advance, which can save you up to 90% on flights from Seattle to Shannon compared to booking the week you need them. Waiting 52 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $842. For sooner than that we have options available in the next 3 days from $940.

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 $907 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

What is the cheapest time of day to fly from SEA to 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 Seattle to Shannon flights in June & July 2024

Find cheap flight options from Seattle to Shannon specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in June and July 2024. More deals are always being added, so be sure to check back regularly.
Thu 7/412:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Fri 7/1212:30 pmSNN - SEA
2 stops20h 24mUnited Airlines
Deal found 6/5$753
Thu 7/412:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Fri 7/1212:30 pmSNN - SEA
1 stop16h 41mUnited Airlines
Deal found 6/5$791
Fri 7/58:58 amSEA - SNN
2 stops14h 32mUnited Airlines
Fri 7/1212:30 pmSNN - SEA
2 stops27h 32mUnited Airlines
Deal found 6/5$794
Sat 7/137:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Sat 7/2012:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 6/5$795
Sat 7/135:05 amSEA - SNN
2 stops18h 25mUnited Airlines
Sat 7/2012:30 pmSNN - SEA
2 stops29h 19mUnited Airlines
Deal found 6/6$826
Thu 7/412:30 amSEA - SNN
2 stops26h 00mUnited Airlines
Fri 7/1212:30 pmSNN - SEA
2 stops27h 32mUnited Airlines
Deal found 6/5$840
Sat 7/137:10 amSEA - SNN
1 stop19h 40mDelta
Sat 7/2012:50 pmSNN - SEA
1 stop17h 35mDelta
Deal found 6/5$968
Fri 7/1212:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sat 7/209:30 amSNN - SEA
1 stop17h 12mUnited Airlines
Deal found 6/5$983
Fri 7/1212:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Sat 7/209:30 amSNN - SEA
1 stop19h 39mUnited Airlines
Deal found 6/6$1,024

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 3,050,429 searches. Data last updated June 6, 2024.
The lowest fares we've come across on flights traveling from Seattle to Shannon in June and July 2024. More deals are always being added, so be sure to check back regularly.
Tue 10/157:40 amSEA - SNN
2 stops19h 40mAmerican Airlines
Wed 10/237:40 amSNN - SEA
2 stops21h 53mAmerican Airlines
Deal found 6/5$458
Tue 8/134:46 pmSEA - SNN
2 stops19h 49mAmerican Airlines
Tue 8/277:40 amSNN - SEA
2 stops22h 00mAmerican Airlines
Deal found 6/4$493
Wed 8/145:30 amSEA - SNN
2 stops21h 20mDelta
Thu 8/2912:50 pmSNN - SEA
2 stops19h 07mDelta
Deal found 6/4$496
Tue 8/1311:01 pmSEA - SNN
1 stop27h 49mDelta
Tue 8/2712:50 pmSNN - SEA
1 stop17h 34mDelta
Deal found 6/4$497
Tue 8/1311:01 pmSEA - SNN
1 stop27h 49mDelta
Fri 8/3012:50 pmSNN - SEA
2 stops27h 47mDelta
Deal found 6/4$502
Tue 8/1311:01 pmSEA - SNN
1 stop27h 49mDelta
Fri 8/3012:50 pmSNN - SEA
1 stop29h 15mDelta
Deal found 6/4$503
Tue 10/1511:50 amSEA - SNN
1 stop14h 40mUnited Airlines
Wed 10/2312:30 pmSNN - SEA
1 stop15h 02mUnited Airlines
Deal found 6/5$504
Tue 10/158:38 amSEA - SNN
2 stops17h 52mUnited Airlines
Wed 10/2312:30 pmSNN - SEA
1 stop15h 02mUnited Airlines
Deal found 6/5$508
Sat 8/1012:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Tue 8/279:30 amSNN - SEA
1 stop14h 11mUnited Airlines
Deal found 6/4$524

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 3,050,429 searches. Data last updated June 6, 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.
Fri 8/167:23 pmSEA - SNN
3 stops53h 07mMultiple Airlines
Deal found 6/5$355
Thu 8/15:15 pmSEA - SNN
2 stops56h 30mMultiple Airlines
Deal found 6/5$385
Thu 8/19:21 pmSEA - SNN
3 stops40h 04mMultiple Airlines
Deal found 6/5$418
Fri 8/211:00 pmSEA - SNN
3 stops49h 30mMultiple Airlines
Deal found 6/5$419
Fri 8/1611:00 pmSEA - SNN
2 stops39h 50mMultiple Airlines
Deal found 6/5$426
Fri 8/211:00 pmSEA - SNN
2 stops26h 45mMultiple Airlines
Deal found 6/5$453
Fri 8/1611:01 pmSEA - SNN
1 stop27h 49mDelta
Deal found 6/5$517
Wed 7/3112:30 amSEA - SNN
1 stop23h 00mUnited Airlines
Deal found 6/5$521
Fri 8/211:01 pmSEA - SNN
1 stop27h 49mDelta
Deal found 6/5$526

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$458 - $761

Route

Depart

Return

Price

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/15

2 stops19h 40m

Shannon

Wed 10/23

2 stops21h 53m

$458

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/13

2 stops19h 49m

Shannon

Tue 8/27

2 stops22h 00m

$493

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/14

2 stops21h 20m

Shannon

Thu 8/29

2 stops19h 07m

$496

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/13

1 stop27h 49m

Shannon

Thu 8/29

1 stop17h 34m

$497

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/15

1 stop14h 40m

Shannon

Wed 10/23

1 stop15h 02m

$504

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/15

2 stops17h 52m

Shannon

Wed 10/23

1 stop15h 02m

$508

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/15

1 stop19h 40m

Shannon

Tue 8/27

2 stops29h 00m

$546

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/1

1 stop23h 05m

Shannon

Tue 10/22

1 stop22h 10m

$678

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/1

3 stops19h 45m

Shannon

Tue 10/22

2 stops38h 50m

$761

Flights are sorted by cheapest first

Deals found on 6/5

How far ahead should I book a flight from Seattle to Shannon?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Shannon. Price data was last updated on May 31, 2024.
The price you pay for your flight from Seattle to Shannon may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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What is the cheapest day 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 June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Shannon flight should consider departing on Tuesday mornings 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.
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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

If weather is an important factor for your trip to Shannon, 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 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 June 6, 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.
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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.

KLM
7.9
Good
1,489 reviews
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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.

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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.

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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.

British Airways
6.8
Okay
6,754 reviews
Delta
8.0
Very good
10,368 reviews

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Overall

8.0

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 $500 on Cheapflights?

    Yes, there are multiple flights from Seattle to Shannon for under $500. The cheapest flight booked recently is on American Airlines for just $458, but on average you can expect to pay $527.

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

    According to our current data, American Airlines ($458), Delta ($496), and United Airlines ($504) offers the cheapest pricing from Seattle to Shannon. Users have found that American Airlines is 49% 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 Delta, which is currently one of the cheapest options available, starting at $517. United Airlines flights start at $521 while deals on American Airlines start at $561 one-way.

  • 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 6/5.

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

    Before booking your flight from Seattle to Shannon check out the most popular airlines for this route: American Airlines, British Airways or Delta.

  • What is the cheapest month 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 $1,017). 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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See prices for flight routes from nearby airports that may be better suited for you.

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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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$549Average$929FlexibilityNo cancel feeOn-time71%
Aer LingusCheapest$556Average$813FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$573Average$885FlexibilityNo cancel feeOn-time69%
DeltaCheapest$631Average$894FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$754Average$938FlexibilityNo cancel feeOn-time70%
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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.
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