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Cheap flights from Seattle to Shannon from $389

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Shannon departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:35 pm - 11:20 amSEA-SNN
13h 45m1 stop
American Airlines Logo
7:40 am - 11:05 pmSNN-SEA
23h 25m2 stops
$530American Airlines
Find Deal
Tue, May 5 - Fri, May 15
American Airlines Logo
3:21 pm - 4:10 pmSEA-SNN
16h 49m2 stops
American Airlines Logo
7:40 am - 9:46 pmSNN-SEA
22h 06m2 stops
$534American Airlines
Find Deal
Tue, May 5 - Fri, May 15
United Airlines Logo
12:25 pm - 10:15 amSEA-SNN
13h 50m1 stop
United Airlines Logo
12:30 pm - 10:50 pmSNN-SEA
18h 20m2 stops
$542United Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25
American Airlines Logo
1:35 pm - 4:10 pmSEA-SNN
18h 35m1 stop
American Airlines Logo
9:15 pm - 11:35 amSNN-SEA
22h 20m1 stop
$580American Airlines
Find Deal
Tue, May 5 - Fri, May 15
Multiple Airlines Logo
2:35 pm - 9:30 pmSEA-SNN
22h 55m2 stops
Multiple Airlines Logo
5:30 pm - 5:00 pmSNN-SEA
31h 30m2 stops
$643Multiple Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
1:25 pm - 4:45 pmSEA-SNN
19h 20m1 stop
American Airlines Logo
7:50 am - 10:25 pmSNN-SEA
22h 35m2 stops
$674American Airlines
Find Deal
Tue, Dec 9 - Tue, Dec 16
Multiple Airlines Logo
1:35 pm - 11:20 amSEA-SNN
13h 45m1 stop
Multiple Airlines Logo
5:30 pm - 11:35 amSNN-SEA
26h 05m1 stop
$684Multiple Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25
Multiple Airlines Logo
1:35 pm - 11:20 amSEA-SNN
13h 45m1 stop
Multiple Airlines Logo
5:30 pm - 11:35 amSNN-SEA
26h 05m1 stop
$687Multiple Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25
British Airways Logo
2:35 pm - 11:30 amSEA-SNN
13h 55m1 stop
British Airways Logo
5:30 pm - 12:30 pmSNN-SEA
26h 00m1 stop
$701British Airways
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Fri, Mar 13 - Thu, Mar 19
Aer Lingus Logo
7:50 pm - 4:45 pmSEA-SNN
13h 55m1 stop
Aer Lingus Logo
7:50 am - 5:55 pmSNN-SEA
17h 05m1 stop
$729Aer Lingus
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Sat, Mar 14 - Fri, Mar 20

Air Canada flights from Seattle to Shannon, Clare

Our best Air Canada deals on Seattle to Shannon, Clare flight tickets
Air Canada
Mar 27
SEA8:10 amSeattle/Tacoma Intl
24h 35m
2 stops
SNN3:45 pmShannon
Mar 31
SNN7:40 amShannon
46h 11m
2 stops
SEA9:51 pmSeattle/Tacoma Intl
$762
Find similar
Air Canada
Apr 14
SEA8:00 amSeattle/Tacoma Intl
24h 10m
2 stops
SNN4:10 pmShannon
Apr 25
SNN7:40 amShannon
19h 38m
3 stops
SEA7:18 pmSeattle/Tacoma Intl
$781
Find similar
Air Canada
Mar 14
SEA8:10 amSeattle/Tacoma Intl
25h 35m
2 stops
SNN4:45 pmShannon
Mar 21
SNN7:50 amShannon
45h 26m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
$897
Find similar

American Airlines flights from Seattle to Shannon, Clare

Our best American Airlines deals on Seattle to Shannon, Clare flight tickets
American Airlines
May 5
SEA1:35 pmSeattle/Tacoma Intl
13h 45m
1 stop
SNN11:20 amShannon
May 15
SNN7:40 amShannon
23h 25m
2 stops
SEA11:05 pmSeattle/Tacoma Intl
$530
Find similar
American Airlines
May 5
SEA3:21 pmSeattle/Tacoma Intl
16h 49m
2 stops
SNN4:10 pmShannon
May 15
SNN7:40 amShannon
22h 06m
2 stops
SEA9:46 pmSeattle/Tacoma Intl
$534
Find similar
American Airlines
May 5
SEA1:35 pmSeattle/Tacoma Intl
18h 35m
1 stop
SNN4:10 pmShannon
May 15
SNN9:15 pmShannon
22h 20m
1 stop
SEA11:35 amSeattle/Tacoma Intl
$580
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Shannon, Clare 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, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Seattle to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Fri 5/15

7:40 am-11:05 pm

2 stops23h 25m

$530

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

3:21 pm-4:10 pm

2 stops16h 49m

Shannon

Fri 5/15

7:40 am-9:46 pm

2 stops22h 06m

$534

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

12:25 pm-10:15 am

1 stop13h 50m

Shannon

Sat 4/25

12:30 pm-10:50 pm

2 stops18h 20m

$542

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

1:35 pm-4:10 pm

1 stop18h 35m

Shannon

Fri 5/15

9:15 pm-11:35 am

1 stop22h 20m

$580

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 12/9

2:35 pm-9:30 pm

2 stops22h 55m

Shannon

Tue 12/16

5:30 pm-5:00 pm

2 stops31h 30m

$643

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 12/9

1:25 pm-4:45 pm

1 stop19h 20m

Shannon

Tue 12/16

7:50 am-10:25 pm

2 stops22h 35m

$674

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Sat 4/25

5:30 pm-11:35 am

1 stop26h 05m

$684

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Sat 4/25

5:30 pm-11:35 am

1 stop26h 05m

$687

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 3/13

2:35 pm-11:30 am

1 stop13h 55m

Shannon

Thu 3/19

5:30 pm-12:30 pm

1 stop26h 00m

$701

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 3/14

7:50 pm-4:45 pm

1 stop13h 55m

Shannon

Fri 3/20

7:50 am-5:55 pm

1 stop17h 05m

$729

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Shannon from

How to get the cheapest flight ticket from Seattle to Shannon, Clare

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Shannon, Clare?

The cheapest day to depart from Seattle to Shannon, Clare is on a Tuesday when prices can be found for as low as $745. The most expensive day to fly to Shannon, Clare is Saturday, with ticket prices averaging around $1,142.

What is the cheapest time of day to depart on your flight to Shannon, Clare?

Our data shows that the cheapest Seattle to Shannon, Clare flights are usually those with departure times in the afternoon. Our users have found flights to Shannon, Clare in the afternoon for as low as $789. Flights in the evening are often more expensive with an average ticket price of $895.

When to book flights from Seattle to Shannon, Clare

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Shannon, Clare according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Shannon, Clare (SEA to SNN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Shannon, Clare

Direct flights

None
There are no direct flights from Seattle to Shannon, Clare. There are no popular flight routes from Seattle to Shannon, Clare.
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  • How far is Seattle/Tacoma Intl to Shannon by plane?

    The straight-line distance from Seattle/Tacoma Intl to Shannon is 4478.2 mi. By plane, this route typically takes 12h 55m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Shannon Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Shannon Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Shannon Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Shannon Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The travel and health documents you'll need for your trip to Shannon Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Shannon, Clare?

Best airlines flying from Seattle to Shannon, Clare

Compare and see reviews for airlines that fly from Seattle to Shannon, Clare with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $520Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Aer LingusPriceFrom $715Free CancellationRating
7.2
1,370 reviews
Search Aer Lingus flights

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Adare
Bunratty
Lahinch
Ennis
Nenagh

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Shannon?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Shannon for you.

Can I find flights from Seattle to Shannon with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Shannon from Seattle with this policy.

How can momondo help me find flights from Seattle to Shannon?

Once you have performed a search for Seattle to Shannon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Seattle to Shannon right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Shannon flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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