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Cheap flights from Seattle to Shannon from $453

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
1 adult, Economy, 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.
Multiple Airlines Logo
10:41 am - 7:30 am
SEA
-
SNN
12h 49m
1 stop
Multiple Airlines Logo
12:00 pm - 11:55 am
SNN
-
SEA
31h 55m
1 stop
$725Multiple Airlines
Thu, Aug 13 - Sat, Aug 29
Multiple Airlines Logo
5:00 am - 7:30 am
SEA
-
SNN
18h 30m
2 stops
Multiple Airlines Logo
12:00 pm - 11:55 am
SNN
-
SEA
31h 55m
1 stop
$731Multiple Airlines
Thu, Aug 13 - Sat, Aug 29
United Airlines Logo
1:05 pm - 10:15 am
SEA
-
SNN
13h 10m
1 stop
United Airlines Logo
9:30 am - 7:07 pm
SNN
-
SEA
17h 37m
1 stop
$732United Airlines
Mon, Aug 3 - Mon, Aug 24
United Airlines Logo
1:05 pm - 10:15 am
SEA
-
SNN
13h 10m
1 stop
United Airlines Logo
9:30 am - 5:42 pm
SNN
-
SEA
16h 12m
2 stops
$736United Airlines
Mon, Aug 3 - Mon, Aug 24
Lufthansa Logo
6:50 pm - 11:15 am
SEA
-
SNN
32h 25m
2 stops
Lufthansa Logo
12:00 pm - 11:55 am
SNN
-
SEA
31h 55m
1 stop
$748Lufthansa
Thu, Aug 13 - Sat, Aug 29
Multiple Airlines Logo
5:00 am - 7:30 am
SEA
-
SNN
18h 30m
2 stops
Multiple Airlines Logo
12:00 pm - 4:59 pm
SNN
-
SEA
36h 59m
2 stops
$755Multiple Airlines
Thu, Aug 13 - Sat, Aug 29
Lufthansa Logo
7:00 am - 7:30 am
SEA
-
SNN
16h 30m
1 stop
Lufthansa Logo
12:00 pm - 11:55 am
SNN
-
SEA
31h 55m
1 stop
$780Lufthansa
Thu, Aug 13 - Sat, Aug 29
United Airlines Logo
10:42 am - 7:30 am
SEA
-
SNN
12h 48m
1 stop
United Airlines Logo
12:30 pm - 9:55 pm
SNN
-
SEA
17h 25m
1 stop
$790United Airlines
Thu, Sep 17 - Thu, Sep 24
United Airlines Logo
1:00 pm - 10:15 am
SEA
-
SNN
13h 15m
1 stop
United Airlines Logo
12:30 pm - 10:59 pm
SNN
-
SEA
18h 29m
2 stops
$794United Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
1:25 pm - 11:10 am
SEA
-
SNN
37h 45m
2 stops
Multiple Airlines Logo
1:05 pm - 4:54 pm
SNN
-
SEA
35h 49m
2 stops
$804Multiple Airlines
Tue, Aug 25 - Tue, Sep 1

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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
Aug 3
SEA1:05 pmSeattle/Tacoma Intl
13h 10m
1 stop
SNN10:15 amShannon
Aug 24
SNN9:30 amShannon
17h 37m
1 stop
SEA7:07 pmSeattle/Tacoma Intl
$732
United Airlines
Aug 3
SEA1:05 pmSeattle/Tacoma Intl
13h 10m
1 stop
SNN10:15 amShannon
Aug 24
SNN9:30 amShannon
16h 12m
2 stops
SEA5:42 pmSeattle/Tacoma Intl
$736
United Airlines
Sep 17
SEA10:42 amSeattle/Tacoma Intl
12h 48m
1 stop
SNN7:30 amShannon
Sep 24
SNN12:30 pmShannon
17h 25m
1 stop
SEA9:55 pmSeattle/Tacoma Intl
$790

Aer Lingus flights from Seattle to Shannon, Clare

Our best Aer Lingus deals on Seattle to Shannon, Clare flight tickets
Aer Lingus
Nov 20
SEA8:05 pmSeattle/Tacoma Intl
31h 25m
2 stops
SNN11:30 amShannon
Nov 29
SNN8:05 pmShannon
30h 15m
2 stops
SEA6:20 pmSeattle/Tacoma Intl
$1,042
Aer Lingus
Jul 25
SEA7:10 pmSeattle/Tacoma Intl
32h 10m
2 stops
SNN11:20 amShannon
Jul 31
SNN9:15 pmShannon
27h 55m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$1,193
Aer Lingus
Jul 13
SEA7:10 pmSeattle/Tacoma Intl
17h 25m
2 stops
SNN8:35 pmShannon
Jul 15
SNN4:50 pmShannon
32h 20m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$1,205

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 July 12, 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

Thu 8/13

10:41 am-7:30 am

1 stop12h 49m

Shannon

Sat 8/29

12:00 pm-11:55 am

1 stop31h 55m

$725

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/13

5:00 am-7:30 am

2 stops18h 30m

Shannon

Sat 8/29

12:00 pm-11:55 am

1 stop31h 55m

$731

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

1:05 pm-10:15 am

1 stop13h 10m

Shannon

Mon 8/24

9:30 am-7:07 pm

1 stop17h 37m

$732
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

1:05 pm-10:15 am

1 stop13h 10m

Shannon

Mon 8/24

9:30 am-5:42 pm

2 stops16h 12m

$736

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/13

6:50 pm-11:15 am

2 stops32h 25m

Shannon

Sat 8/29

12:00 pm-11:55 am

1 stop31h 55m

$748

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/13

5:00 am-7:30 am

2 stops18h 30m

Shannon

Sat 8/29

12:00 pm-4:59 pm

2 stops36h 59m

$755

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 8/13

7:00 am-7:30 am

1 stop16h 30m

Shannon

Sat 8/29

12:00 pm-11:55 am

1 stop31h 55m

$780

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 9/17

10:42 am-7:30 am

1 stop12h 48m

Shannon

Thu 9/24

12:30 pm-9:55 pm

1 stop17h 25m

$790

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 9/17

1:00 pm-10:15 am

1 stop13h 15m

Shannon

Thu 9/24

12:30 pm-10:59 pm

2 stops18h 29m

$794

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/25

1:25 pm-11:10 am

2 stops37h 45m

Shannon

Tue 9/1

1:05 pm-4:54 pm

2 stops35h 49m

$804

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

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

You could potentially save up to 6% 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

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 $468Free CancellationRating
7.1
11,804 reviews
Search American Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,980 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
Ennis
Adare
Lahinch
Nenagh
Bunratty

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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