Cheap flights from Seattle (SEA) to Shannon (SNN) from $550

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 7/18. 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 10 — May 171

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 5, 2024.

Popular in

December

Cheapest in

January

Average price

$907

Round-trip from

$533
High demand for flights, 21% potential price rise
Best time to find cheap flights, 30% potential price drop
Average for round-trip flights in May 2024
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 26% on flights from Seattle to Shannon by exploring options for tickets in the afternoon.

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 2,795,183 searches. Data last updated May 5, 2024.
Consider these cheap United Airlines flights we've found departing from Seattle to Shannon. Deals update often to give you more flight options matching your criteria
Wed 9/116:45 amSEA - SNN
2 stops16h 45mUnited Airlines
Wed 10/212:30 pmSNN - SEA
1 stop15h 01mUnited Airlines
Deal found 5/5$563
Mon 9/26:45 pmSEA - SNN
2 stops28h 45mUnited Airlines
Tue 9/109:30 amSNN - SEA
1 stop14h 11mUnited Airlines
Deal found 5/4$568
Wed 9/411:59 pmSEA - SNN
2 stops23h 31mUnited Airlines
Wed 9/259:30 amSNN - SEA
1 stop20h 52mUnited Airlines
Deal found 5/4$618
Mon 5/2011:45 amSEA - SNN
1 stop14h 45mUnited Airlines
Wed 5/299:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/4$646
Mon 5/205:00 amSEA - SNN
2 stops21h 30mUnited Airlines
Wed 5/299:30 amSNN - SEA
3 stops20h 45mUnited Airlines
Deal found 5/4$651
Thu 5/307:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Thu 6/69:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/5$778
Sat 6/87:25 pmSEA - SNN
2 stops28h 05mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$780
Sat 6/85:48 pmSEA - SNN
1 stop29h 42mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$782
Thu 5/3011:29 pmSEA - SNN
2 stops24h 01mUnited Airlines
Thu 6/69:30 amSNN - SEA
1 stop22h 28mUnited Airlines
Deal found 5/5$783

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 2,795,183 searches. Data last updated May 5, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Seattle to Shannon. Deals are refreshing constantly so come back soon for more options.
Fri 9/206:36 amSEA - SNN
2 stops20h 44mAmerican Airlines
Sat 12/217:45 amSNN - SEA
2 stops35h 25mAmerican Airlines
Deal found 5/4$994
Sun 5/191:15 amSEA - SNN
2 stops26h 05mAmerican Airlines
Wed 5/299:25 pmSNN - SEA
2 stops33h 40mAmerican Airlines
Deal found 5/4$1,016
Mon 7/17:40 pmSEA - SNN
1 stop16h 55mAmerican Airlines
Sun 7/79:25 pmSNN - SEA
2 stops32h 33mAmerican Airlines
Deal found 5/5$1,118
Mon 7/15:10 amSEA - SNN
2 stops27h 00mAmerican Airlines
Sun 7/79:25 pmSNN - SEA
2 stops32h 33mAmerican Airlines
Deal found 5/5$1,122
Sat 5/187:40 pmSEA - SNN
1 stop31h 40mAmerican Airlines
Sat 5/257:40 amSNN - SEA
2 stops35h 03mAmerican Airlines
Deal found 5/4$1,295

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 2,795,183 searches. Prices were last updated on May 5, 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.
Mon 5/2011:45 amSEA - SNN
1 stop14h 45mUnited Airlines
Wed 5/299:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/4$646
Mon 5/205:00 amSEA - SNN
2 stops21h 30mUnited Airlines
Wed 5/299:30 amSNN - SEA
3 stops20h 45mUnited Airlines
Deal found 5/4$651
Thu 5/307:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Thu 6/69:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/5$778
Sat 6/87:25 pmSEA - SNN
2 stops28h 05mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$780
Sat 6/85:48 pmSEA - SNN
1 stop29h 42mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$782
Thu 5/3011:29 pmSEA - SNN
2 stops24h 01mUnited Airlines
Thu 6/69:30 amSNN - SEA
1 stop22h 28mUnited Airlines
Deal found 5/5$783
Sat 6/88:53 amSEA - SNN
2 stops14h 37mUnited Airlines
Fri 6/219:30 amSNN - SEA
3 stops20h 45mUnited Airlines
Deal found 5/4$830
Sat 5/1811:10 pmSEA - SNN
2 stops33h 00mAir Canada
Sat 5/255:30 pmSNN - SEA
2 stops36h 28mAir Canada
Deal found 5/4$923
Sun 5/191:15 amSEA - SNN
2 stops26h 05mAmerican Airlines
Wed 5/299:25 pmSNN - SEA
2 stops33h 40mAmerican Airlines
Deal found 5/4$1,016

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 2,795,183 searches. Data last updated May 5, 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.
Wed 9/116:45 amSEA - SNN
2 stops16h 45mUnited Airlines
Wed 10/212:30 pmSNN - SEA
1 stop15h 01mUnited Airlines
Deal found 5/5$563
Mon 9/26:45 pmSEA - SNN
2 stops28h 45mUnited Airlines
Tue 9/109:30 amSNN - SEA
1 stop14h 11mUnited Airlines
Deal found 5/4$568
Sat 8/2410:55 pmSEA - SNN
1 stop27h 55mDelta
Wed 9/412:50 pmSNN - SEA
1 stop17h 33mDelta
Deal found 5/4$569
Wed 9/411:59 pmSEA - SNN
2 stops23h 31mUnited Airlines
Wed 9/259:30 amSNN - SEA
1 stop20h 52mUnited Airlines
Deal found 5/4$618
Mon 5/2011:45 amSEA - SNN
1 stop14h 45mUnited Airlines
Wed 5/299:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/4$646
Mon 5/205:00 amSEA - SNN
2 stops21h 30mUnited Airlines
Wed 5/299:30 amSNN - SEA
3 stops20h 45mUnited Airlines
Deal found 5/4$651
Thu 5/307:00 amSEA - SNN
1 stop16h 30mUnited Airlines
Thu 6/69:30 amSNN - SEA
1 stop17h 10mUnited Airlines
Deal found 5/5$778
Sat 6/87:25 pmSEA - SNN
2 stops28h 05mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$780
Sat 6/85:48 pmSEA - SNN
1 stop29h 42mUnited Airlines
Fri 6/219:30 amSNN - SEA
1 stop14h 38mUnited Airlines
Deal found 5/4$782

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 2,795,183 searches. Data last updated May 5, 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 7/1811:15 amSEA - SNN
1 stop15h 35mDelta
Deal found 5/4$550
Wed 7/1712:30 amSEA - SNN
2 stops26h 00mUnited Airlines
Deal found 5/4$556
Fri 6/710:45 pmSEA - SNN
2 stops24h 45mUnited Airlines
Deal found 5/5$563
Fri 6/711:15 amSEA - SNN
1 stop15h 35mDelta
Deal found 5/5$564
Thu 6/612:25 amSEA - SNN
2 stops26h 05mUnited Airlines
Deal found 5/5$569
Fri 6/75:45 amSEA - SNN
3 stops54h 50mMultiple Airlines
Deal found 5/5$570
Thu 7/183:50 pmSEA - SNN
3 stops20h 45mMultiple Airlines
Deal found 5/4$587

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 2,795,183 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$563 - $1,305

Route

Depart

Return

Price

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/11

2 stops16h 45m

Shannon

Wed 10/2

1 stop15h 01m

$563

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 9/2

2 stops28h 45m

Shannon

Tue 9/10

1 stop14h 11m

$568

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/24

1 stop27h 55m

Shannon

Wed 9/4

1 stop17h 33m

$569

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/4

2 stops23h 31m

Shannon

Wed 9/25

1 stop20h 52m

$618

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/20

1 stop14h 45m

Shannon

Wed 5/29

1 stop17h 10m

$646

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 5/18

2 stops33h 00m

Shannon

Sat 5/25

2 stops36h 28m

$923

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 9/20

2 stops20h 44m

Shannon

Sat 12/21

2 stops35h 25m

$994

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 9/20

1 stop13h 50m

Shannon

Sat 12/21

1 stop17h 00m

$1,129

Seattle/Tacoma IntlShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/4

2 stops24h 30m

Shannon

Wed 9/25

3 stops35h 40m

$1,305

Flights are sorted by cheapest first

Deals found on 5/5

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 April 28, 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

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 $566 while a round-trip flight costs $813. Price data was last updated on April 28, 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 $1,060). 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

$620

February

$533

March

$614

April

$695

May

$838

June

$1,060

July

$1,042

August

$907

September

$815

October

$662

November

$584

December

$649

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 5, 2024.
To help decide which airline to fly from Seattle to Shannon, see what other customers have to say about United Airlines, American 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
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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.

8.1
Very good
10,826 reviews
8.1
Very good
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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
11,118 reviews
8.1
Very good
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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
14,713 reviews
8.1
Very good
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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.

7.0
Good
6,913 reviews
8.1
Very good
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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
6,874 reviews
8.1
Very good
10,826 reviews

Crew

8.6

Comfort

7.9

Boarding

8.2

Entertainment

8.0

Food

7.4

Overall

8.1

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 United Airlines for just $563, but on average you can expect to pay $857.

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

    According to our current data, United Airlines ($563), Delta ($569), and Air Canada ($923) offers the cheapest pricing from Seattle to Shannon. Users have found that United Airlines is 37% cheaper than the other options available to this destination.

  • 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.

  • 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 5/5.

See more FAQs

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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 2,795,183 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$556Average$813FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
American AirlinesCheapest$560Average$843FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$573Average$921FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$631Average$894FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest$757Average$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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