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Cheap flights from Seattle to Shannon from $326

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 6/3. 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
1 adult, Economy, 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.
United Airlines Logo
7:00 am - 7:30 am
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 6:59 pm
SNN
-
SEA
17h 29m
1 stop
$753United Airlines
Sun, Sep 6 - Thu, Sep 10
United Airlines Logo
8:30 am - 10:15 am
SEA
-
SNN
17h 45m
2 stops
United Airlines Logo
9:30 am - 9:56 pm
SNN
-
SEA
20h 26m
2 stops
$757United Airlines
Tue, Aug 4 - Tue, Aug 25
United Airlines Logo
7:00 am - 7:30 am
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 9:56 pm
SNN
-
SEA
20h 26m
2 stops
$758United Airlines
Sun, Sep 6 - Thu, Sep 10
United Airlines Logo
7:01 am - 7:30 am
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
9:30 am - 10:42 pm
SNN
-
SEA
21h 12m
1 stop
$803United Airlines
Tue, Aug 4 - Tue, Aug 25
United Airlines Logo
7:00 am - 7:30 am
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
9:30 am - 6:59 pm
SNN
-
SEA
17h 29m
1 stop
$805United Airlines
Sun, Sep 6 - Thu, Sep 10
United Airlines Logo
5:00 am - 10:15 am
SEA
-
SNN
21h 15m
2 stops
United Airlines Logo
9:30 am - 9:56 pm
SNN
-
SEA
20h 26m
2 stops
$807United Airlines
Sun, Sep 6 - Thu, Sep 10
United Airlines Logo
7:54 pm - 10:15 am
SEA
-
SNN
30h 21m
2 stops
United Airlines Logo
9:30 am - 6:59 pm
SNN
-
SEA
17h 29m
1 stop
$819United Airlines
Mon, Aug 3 - Mon, Aug 24
United Airlines Logo
7:01 am - 7:30 am
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
9:30 am - 6:59 pm
SNN
-
SEA
17h 29m
1 stop
$820United Airlines
Mon, Aug 3 - Mon, Aug 24
United Airlines Logo
7:01 am - 7:30 am
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
9:30 am - 11:24 pm
SNN
-
SEA
21h 54m
3 stops
$825United Airlines
Mon, Aug 3 - Mon, Aug 24
United Airlines Logo
7:01 am - 7:30 am
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
9:30 am - 10:42 pm
SNN
-
SEA
21h 12m
1 stop
$853United Airlines
Sun, Aug 2 - Sun, Aug 23

KLM flights from Seattle to Shannon, Clare

Our best KLM deals on Seattle to Shannon, Clare flight tickets
KLM
Aug 3
SEA7:15 amSeattle/Tacoma Intl
19h 55m
1 stop
SNN11:10 amShannon
Aug 24
SNN1:05 pmShannon
17h 11m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$863
KLM
Jul 29
SEA7:15 amSeattle/Tacoma Intl
19h 55m
1 stop
SNN11:10 amShannon
Aug 7
SNN1:05 pmShannon
35h 22m
2 stops
SEA4:27 pmSeattle/Tacoma Intl
$889

Delta flights from Seattle to Shannon, Clare

Our best Delta deals on Seattle to Shannon, Clare flight tickets
Delta
Aug 3
SEA7:15 amSeattle/Tacoma Intl
19h 55m
1 stop
SNN11:10 amShannon
Aug 24
SNN1:05 pmShannon
29h 19m
1 stop
SEA10:24 amSeattle/Tacoma Intl
$870
Delta
Aug 3
SEA7:15 amSeattle/Tacoma Intl
19h 55m
1 stop
SNN11:10 amShannon
Aug 24
SNN1:05 pmShannon
17h 11m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$913
Delta
May 24
SEA11:20 amSeattle/Tacoma Intl
15h 50m
1 stop
SNN11:10 amShannon
May 31
SNN1:05 pmShannon
17h 40m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
$1,005

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 April 10, 2026.
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

Cheapest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

7:00 am-7:30 am

1 stop16h 30m

Shannon

Thu 9/10

9:30 am-6:59 pm

1 stop17h 29m

$753

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

8:30 am-10:15 am

2 stops17h 45m

Shannon

Tue 8/25

9:30 am-9:56 pm

2 stops20h 26m

$757

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

7:00 am-7:30 am

1 stop16h 30m

Shannon

Thu 9/10

9:30 am-9:56 pm

2 stops20h 26m

$758

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

7:01 am-7:30 am

1 stop16h 29m

Shannon

Tue 8/25

9:30 am-10:42 pm

1 stop21h 12m

$803

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

7:00 am-7:30 am

1 stop16h 30m

Shannon

Thu 9/10

9:30 am-6:59 pm

1 stop17h 29m

$805

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

5:00 am-10:15 am

2 stops21h 15m

Shannon

Thu 9/10

9:30 am-9:56 pm

2 stops20h 26m

$807

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

7:54 pm-10:15 am

2 stops30h 21m

Shannon

Mon 8/24

9:30 am-6:59 pm

1 stop17h 29m

$819
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

7:01 am-7:30 am

1 stop16h 29m

Shannon

Mon 8/24

9:30 am-6:59 pm

1 stop17h 29m

$820

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

7:01 am-7:30 am

1 stop16h 29m

Shannon

Mon 8/24

9:30 am-11:24 pm

3 stops21h 54m

$825

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/2

7:01 am-7:30 am

1 stop16h 29m

Shannon

Sun 8/23

9:30 am-10:42 pm

1 stop21h 12m

$853

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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 airline that flies from Seattle/Tacoma Intl to Shannon?

United Airlines, Delta, and KLM are the most popular carriers operating from Seattle/Tacoma Intl to Shannon

What airlines fly to Shannon, Clare?

American Airlines, British Airways and United Airlines are the top three most popular airlines that fly to Shannon, Clare from Seattle according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Shannon, Clare. Keep in mind that there are 4 different airlines that fly to Shannon, Clare on a routine basis, so you have a few additional options to choose from.

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

12h 38m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 12h 38m
There are no direct flights from Seattle to Shannon, Clare. There are no popular flight routes from Seattle to Shannon, Clare.
Search flight deals

Frequently asked questions about flying from Seattle to Shannon, Clare

  • 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 38m.

  • 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 $469Free CancellationRating
7.1
11,564 reviews
Search American Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,562 reviews
Search United Airlines flights

Traveling to a place near Shannon?

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

An easier way to manage your Shannon, Clare trip

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