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Cheap flights from Seattle to Shannon from $374

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 7/25. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:00 am - 7:30 am
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
9:30 am - 3:36 pm
SNN
-
SEA
14h 06m
1 stop
$753United Airlines
Mon, Sep 7 - Wed, Sep 16
United Airlines Logo
5:00 am - 7:30 am
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
9:30 am - 9:11 pm
SNN
-
SEA
19h 41m
2 stops
$758United Airlines
Mon, Sep 7 - Wed, Sep 16
United Airlines Logo
11:10 pm - 10:15 am
SEA
-
SNN
51h 05m
2 stops
United Airlines Logo
9:30 am - 6:59 pm
SNN
-
SEA
17h 29m
1 stop
$769United Airlines
Fri, Sep 4 - Wed, Sep 16
Delta Logo
7:15 am - 11:10 am
SEA
-
SNN
19h 55m
1 stop
Delta Logo
1:05 pm - 10:16 pm
SNN
-
SEA
17h 11m
1 stop
$770Delta
Tue, Aug 4 - Tue, Aug 25
United Airlines Logo
7:05 pm - 7:30 am
SEA
-
SNN
28h 25m
2 stops
United Airlines Logo
9:30 am - 10:42 pm
SNN
-
SEA
21h 12m
1 stop
$775United Airlines
Tue, Aug 4 - Tue, Aug 25
United Airlines Logo
10:40 pm - 7:30 am
SEA
-
SNN
24h 50m
1 stop
United Airlines Logo
9:30 am - 3:36 pm
SNN
-
SEA
14h 06m
1 stop
$776United Airlines
Tue, Aug 4 - Tue, Aug 25
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
7:05 am - 10:15 am
SEA
-
SNN
19h 10m
2 stops
United Airlines Logo
9:30 am - 3:36 pm
SNN
-
SEA
14h 06m
1 stop
$825United Airlines
Mon, Aug 3 - Mon, Aug 24
United Airlines Logo
1:00 pm - 10:15 am
SEA
-
SNN
13h 15m
1 stop
United Airlines Logo
12:30 pm - 10:00 am
SNN
-
SEA
29h 30m
2 stops
$835United Airlines
Wed, Sep 23 - Mon, Oct 5
United Airlines Logo
5:00 am - 7:30 am
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
9:30 am - 1:14 pm
SNN
-
SEA
35h 44m
2 stops
$837United Airlines
Sun, Aug 2 - Sun, Aug 23

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United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
Sep 7
SEA5:00 amSeattle/Tacoma Intl
18h 30m
2 stops
SNN7:30 amShannon
Sep 16
SNN9:30 amShannon
14h 06m
1 stop
SEA3:36 pmSeattle/Tacoma Intl
$753
United Airlines
Sep 7
SEA5:00 amSeattle/Tacoma Intl
18h 30m
2 stops
SNN7:30 amShannon
Sep 16
SNN9:30 amShannon
19h 41m
2 stops
SEA9:11 pmSeattle/Tacoma Intl
$758
United Airlines
Sep 4
SEA11:10 pmSeattle/Tacoma Intl
51h 05m
2 stops
SNN10:15 amShannon
Sep 16
SNN9:30 amShannon
17h 29m
1 stop
SEA6:59 pmSeattle/Tacoma Intl
$769

Air Canada flights from Seattle to Shannon, Clare

Our best Air Canada deals on Seattle to Shannon, Clare flight tickets
Air Canada
Aug 4
SEA8:00 amSeattle/Tacoma Intl
19h 20m
2 stops
SNN11:20 amShannon
Aug 25
SNN7:30 amShannon
23h 18m
3 stops
SEA10:48 pmSeattle/Tacoma Intl
$991
Air Canada
Aug 4
SEA8:00 amSeattle/Tacoma Intl
19h 20m
2 stops
SNN11:20 amShannon
Aug 25
SNN7:30 amShannon
19h 02m
3 stops
SEA6:32 pmSeattle/Tacoma Intl
$992
Air Canada
Aug 3
SEA8:00 amSeattle/Tacoma Intl
24h 10m
2 stops
SNN4:10 pmShannon
Aug 24
SNN7:30 amShannon
19h 02m
3 stops
SEA6:32 pmSeattle/Tacoma Intl
$1,011

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 29, 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
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 9/7

5:00 am-7:30 am

2 stops18h 30m

Shannon

Wed 9/16

9:30 am-3:36 pm

1 stop14h 06m

$753

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 9/7

5:00 am-7:30 am

2 stops18h 30m

Shannon

Wed 9/16

9:30 am-9:11 pm

2 stops19h 41m

$758

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 9/4

11:10 pm-10:15 am

2 stops51h 05m

Shannon

Wed 9/16

9:30 am-6:59 pm

1 stop17h 29m

$769

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

7:15 am-11:10 am

1 stop19h 55m

Shannon

Tue 8/25

1:05 pm-10:16 pm

1 stop17h 11m

$770

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

7:05 pm-7:30 am

2 stops28h 25m

Shannon

Tue 8/25

9:30 am-10:42 pm

1 stop21h 12m

$775

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

10:40 pm-7:30 am

1 stop24h 50m

Shannon

Tue 8/25

9:30 am-3:36 pm

1 stop14h 06m

$776

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

7:05 am-10:15 am

2 stops19h 10m

Shannon

Mon 8/24

9:30 am-3:36 pm

1 stop14h 06m

$825

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/23

1:00 pm-10:15 am

1 stop13h 15m

Shannon

Mon 10/5

12:30 pm-10:00 am

2 stops29h 30m

$835

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/2

5:00 am-7:30 am

2 stops18h 30m

Shannon

Sun 8/23

9:30 am-1:14 pm

2 stops35h 44m

$837

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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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

Can stopping save me money on Seattle to Shannon, Clare flights?

You could potentially save up to 15% on your flight if you consider stops on a Seattle to Shannon, Clare flight.

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

15h 50m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 15h 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

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 15h 50m.

  • 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
11,678 reviews
Search American Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,680 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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