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Cheap flights from Seattle to Shannon from $296

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 6/10. 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 - 10:15 am
SEA
-
SNN
19h 15m
2 stops
United Airlines Logo
12:30 pm - 11:59 pm
SNN
-
SEA
19h 29m
1 stop
$593United Airlines
Mon, Apr 20 - Tue, May 5
United Airlines Logo
5:00 am - 10:15 am
SEA
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 pm - 2:36 pm
SNN
-
SEA
34h 06m
3 stops
$612United Airlines
Tue, Apr 28 - Tue, May 5
Delta Logo
9:55 pm - 11:10 am
SEA
-
SNN
29h 15m
1 stop
Delta Logo
1:05 pm - 10:16 pm
SNN
-
SEA
17h 11m
1 stop
$613Delta
Sun, Sep 6 - Thu, Sep 17
United Airlines Logo
12:08 pm - 10:15 am
SEA
-
SNN
14h 07m
1 stop
United Airlines Logo
12:30 pm - 11:37 am
SNN
-
SEA
31h 07m
2 stops
$663United Airlines
Mon, Apr 27 - Mon, May 4
United Airlines Logo
5:00 am - 10:15 am
SEA
-
SNN
21h 15m
2 stops
United Airlines Logo
12:30 pm - 2:36 pm
SNN
-
SEA
34h 06m
3 stops
$687United Airlines
Wed, Apr 29 - Wed, May 6
United Airlines Logo
10:41 pm - 10:15 am
SEA
-
SNN
27h 34m
2 stops
United Airlines Logo
9:30 am - 8:00 am
SNN
-
SEA
30h 30m
2 stops
$692United Airlines
Sat, May 9 - Sun, May 24
United Airlines Logo
5:04 pm - 10:15 am
SEA
-
SNN
33h 11m
3 stops
United Airlines Logo
9:30 am - 9:35 am
SNN
-
SEA
32h 05m
1 stop
$699United Airlines
Sat, Aug 1 - Sun, Aug 16
United Airlines Logo
11:56 pm - 7:30 am
SEA
-
SNN
23h 34m
2 stops
United Airlines Logo
9:30 am - 8:03 pm
SNN
-
SEA
18h 33m
2 stops
$712United Airlines
Sat, Aug 29 - Sun, Sep 6
United Airlines Logo
10:47 am - 7:30 am
SEA
-
SNN
12h 43m
1 stop
United Airlines Logo
9:30 am - 9:11 pm
SNN
-
SEA
19h 41m
2 stops
$742United Airlines
Sat, Aug 29 - Sun, Sep 6
Lufthansa Logo
3:40 pm - 10:15 am
SEA
-
SNN
34h 35m
2 stops
Lufthansa Logo
9:30 am - 3:41 pm
SNN
-
SEA
14h 11m
1 stop
$746Lufthansa
Sat, May 9 - Sun, May 24

British Airways flights from Seattle to Shannon, Clare

Our best British Airways deals on Seattle to Shannon, Clare flight tickets
British Airways
Apr 14
SEA8:20 pmSeattle/Tacoma Intl
16h 15m
1 stop
SNN8:35 pmShannon
Apr 25
SNN5:25 pmShannon
26h 10m
1 stop
SEA11:35 amSeattle/Tacoma Intl
$829
British Airways
Apr 14
SEA1:30 pmSeattle/Tacoma Intl
13h 50m
1 stop
SNN11:20 amShannon
Apr 25
SNN5:25 pmShannon
31h 45m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$833
British Airways
Aug 23
SEA10:11 amSeattle/Tacoma Intl
21h 59m
2 stops
SNN4:10 pmShannon
Aug 27
SNN7:30 amShannon
20h 32m
2 stops
SEA8:02 pmSeattle/Tacoma Intl
$859

United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
Apr 20
SEA5:00 amSeattle/Tacoma Intl
21h 15m
2 stops
SNN10:15 amShannon
May 5
SNN12:30 pmShannon
20h 42m
2 stops
SEA1:12 amSeattle/Tacoma Intl
$593
United Airlines
Apr 28
SEA5:00 amSeattle/Tacoma Intl
21h 15m
2 stops
SNN10:15 amShannon
May 5
SNN12:30 pmShannon
18h 22m
2 stops
SEA10:52 pmSeattle/Tacoma Intl
$612
United Airlines
Apr 27
SEA12:08 pmSeattle/Tacoma Intl
14h 07m
1 stop
SNN10:15 amShannon
May 4
SNN12:30 pmShannon
31h 07m
2 stops
SEA11:37 amSeattle/Tacoma Intl
$663

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 March 16, 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

Mon 4/20

7:00 am-10:15 am

2 stops19h 15m

Shannon

Tue 5/5

12:30 pm-11:59 pm

1 stop19h 29m

$593

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/28

5:00 am-10:15 am

2 stops21h 15m

Shannon

Tue 5/5

12:30 pm-2:36 pm

3 stops34h 06m

$612

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

9:55 pm-11:10 am

1 stop29h 15m

Shannon

Thu 9/17

1:05 pm-10:16 pm

1 stop17h 11m

$613

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 4/27

12:08 pm-10:15 am

1 stop14h 07m

Shannon

Mon 5/4

12:30 pm-11:37 am

2 stops31h 07m

$663

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/29

5:00 am-10:15 am

2 stops21h 15m

Shannon

Wed 5/6

12:30 pm-2:36 pm

3 stops34h 06m

$687

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 5/9

10:41 pm-10:15 am

2 stops27h 34m

Shannon

Sun 5/24

9:30 am-8:00 am

2 stops30h 30m

$692

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/1

5:04 pm-10:15 am

3 stops33h 11m

Shannon

Sun 8/16

9:30 am-9:35 am

1 stop32h 05m

$699

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/29

11:56 pm-7:30 am

2 stops23h 34m

Shannon

Sun 9/6

9:30 am-8:03 pm

2 stops18h 33m

$712
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/29

10:47 am-7:30 am

1 stop12h 43m

Shannon

Sun 9/6

9:30 am-9:11 pm

2 stops19h 41m

$742

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 5/9

3:40 pm-10:15 am

2 stops34h 35m

Shannon

Sun 5/24

9:30 am-3:41 pm

1 stop14h 11m

$746

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 airline that flies from Seattle/Tacoma Intl to Shannon?

Delta and Aer Lingus 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

  • 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
11,467 reviews
Search American Airlines flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,428 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.

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