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Cheap flights from Seattle to Shannon from $278

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 2/11. 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
6:50 pm - 4:45 pmSEA-SNN
13h 55m1 stop
American Airlines Logo
7:50 am - 4:55 pmSNN-SEA
17h 05m1 stop
$468American Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
12:45 pm - 4:45 pmSEA-SNN
20h 00m2 stops
American Airlines Logo
7:50 am - 4:55 pmSNN-SEA
17h 05m1 stop
$473American Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
6:50 pm - 4:45 pmSEA-SNN
13h 55m1 stop
American Airlines Logo
7:50 am - 8:45 pmSNN-SEA
20h 55m2 stops
$478American Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
8:04 am - 11:30 amSEA-SNN
19h 26m2 stops
American Airlines Logo
7:50 am - 10:20 pmSNN-SEA
22h 30m2 stops
$483American Airlines
Find Deal
Thu, Jan 15 - Thu, Jan 22
American Airlines Logo
1:35 pm - 11:20 amSEA-SNN
13h 45m1 stop
American Airlines Logo
7:40 am - 7:20 pmSNN-SEA
19h 40m2 stops
$488American Airlines
Find Deal
Tue, May 12 - Fri, May 22
American Airlines Logo
12:54 pm - 4:10 pmSEA-SNN
19h 16m2 stops
American Airlines Logo
7:40 am - 7:20 pmSNN-SEA
19h 40m2 stops
$493American Airlines
Find Deal
Tue, May 12 - Fri, May 22
American Airlines Logo
1:35 pm - 8:35 pmSEA-SNN
23h 00m1 stop
American Airlines Logo
7:40 am - 11:05 pmSNN-SEA
23h 25m2 stops
$503American Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25
American Airlines Logo
1:33 pm - 4:10 pmSEA-SNN
18h 37m2 stops
American Airlines Logo
7:40 am - 11:05 pmSNN-SEA
23h 25m2 stops
$508American Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25
Lufthansa Logo
2:55 pm - 10:10 amSEA-SNN
35h 15m2 stops
Lufthansa Logo
10:55 am - 12:20 pmSNN-SEA
33h 25m1 stop
$519Lufthansa
Find Deal
Tue, May 12 - Thu, May 21
American Airlines Logo
8:20 pm - 8:35 pmSEA-SNN
16h 15m1 stop
American Airlines Logo
7:40 am - 11:05 pmSNN-SEA
23h 25m2 stops
$528American Airlines
Find Deal
Tue, Apr 14 - Sat, Apr 25

American Airlines flights from Seattle to Shannon, Clare

Our best American Airlines deals on Seattle to Shannon, Clare flight tickets
American Airlines
Jan 8
SEA6:50 pmSeattle/Tacoma Intl
13h 55m
1 stop
SNN4:45 pmShannon
Jan 15
SNN7:50 amShannon
17h 05m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$468
Find similar
American Airlines
Jan 15
SEA12:45 pmSeattle/Tacoma Intl
20h 00m
2 stops
SNN4:45 pmShannon
Jan 22
SNN7:50 amShannon
17h 05m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$473
Find similar
American Airlines
Jan 8
SEA6:50 pmSeattle/Tacoma Intl
13h 55m
1 stop
SNN4:45 pmShannon
Jan 15
SNN7:50 amShannon
20h 55m
2 stops
SEA8:45 pmSeattle/Tacoma Intl
$478
Find similar

Lufthansa flights from Seattle to Shannon, Clare

Our best Lufthansa deals on Seattle to Shannon, Clare flight tickets
Lufthansa
May 12
SEA2:55 pmSeattle/Tacoma Intl
35h 15m
2 stops
SNN10:10 amShannon
May 21
SNN10:55 amShannon
33h 25m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$519
Find similar
Lufthansa
May 12
SEA2:55 pmSeattle/Tacoma Intl
35h 15m
2 stops
SNN10:10 amShannon
May 21
SNN10:55 amShannon
38h 04m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$553
Find similar
Lufthansa
May 12
SEA2:55 pmSeattle/Tacoma Intl
35h 15m
2 stops
SNN10:10 amShannon
May 23
SNN12:00 pmShannon
36h 59m
2 stops
SEA4:59 pmSeattle/Tacoma Intl
$588
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 26, 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

Thu 1/8

6:50 pm-4:45 pm

1 stop13h 55m

Shannon

Thu 1/15

7:50 am-4:55 pm

1 stop17h 05m

$468

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 1/15

12:45 pm-4:45 pm

2 stops20h 00m

Shannon

Thu 1/22

7:50 am-4:55 pm

1 stop17h 05m

$473

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 1/8

6:50 pm-4:45 pm

1 stop13h 55m

Shannon

Thu 1/15

7:50 am-8:45 pm

2 stops20h 55m

$478

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 1/15

8:04 am-11:30 am

2 stops19h 26m

Shannon

Thu 1/22

7:50 am-10:20 pm

2 stops22h 30m

$483

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/12

1:35 pm-11:20 am

1 stop13h 45m

Shannon

Fri 5/22

7:40 am-7:20 pm

2 stops19h 40m

$488

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/12

12:54 pm-4:10 pm

2 stops19h 16m

Shannon

Fri 5/22

7:40 am-7:20 pm

2 stops19h 40m

$493

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

1:35 pm-8:35 pm

1 stop23h 00m

Shannon

Sat 4/25

7:40 am-11:05 pm

2 stops23h 25m

$503

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

1:33 pm-4:10 pm

2 stops18h 37m

Shannon

Sat 4/25

7:40 am-11:05 pm

2 stops23h 25m

$508

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/12

2:55 pm-10:10 am

2 stops35h 15m

Shannon

Thu 5/21

10:55 am-12:20 pm

1 stop33h 25m

$519

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

8:20 pm-8:35 pm

1 stop16h 15m

Shannon

Sat 4/25

7:40 am-11:05 pm

2 stops23h 25m

$528

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 13h 50m
There are no direct flights from Seattle to Shannon, Clare. There are no popular flight routes from Seattle to Shannon, Clare.
Search flight deals

  • 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
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,047 reviews
Search United Airlines flights
Aer LingusPriceFrom $759Free CancellationRating
7.2
1,382 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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