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Cheap flights from Seattle to Shannon from €313

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 23/9. 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

Find the cheapest flights from Seattle to Shannon

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
13:30 - 11:20
SEA
-
SNN
13h 50m
1 stop
British Airways Logo
16:50 - 11:35
SNN
-
SEA
26h 45m
1 stop
€525British Airways
Sat, 12 Sep - Sun, 20 Sep
United Airlines Logo
05:00 - 10:15
SEA
-
SNN
21h 15m
2 stops
United Airlines Logo
09:30 - 17:52
SNN
-
SEA
16h 22m
2 stops
€709United Airlines
Sun, 23 Aug - Tue, 8 Sep
United Airlines Logo
23:59 - 10:15
SEA
-
SNN
26h 16m
2 stops
United Airlines Logo
09:30 - 17:52
SNN
-
SEA
16h 22m
2 stops
€710United Airlines
Sun, 23 Aug - Tue, 8 Sep
United Airlines Logo
10:42 - 07:30
SEA
-
SNN
12h 48m
1 stop
United Airlines Logo
12:30 - 23:36
SNN
-
SEA
19h 06m
1 stop
€718United Airlines
Wed, 9 Sep - Wed, 16 Sep
United Airlines Logo
10:42 - 07:30
SEA
-
SNN
12h 48m
1 stop
United Airlines Logo
09:30 - 23:04
SNN
-
SEA
21h 34m
2 stops
€722United Airlines
Wed, 9 Sep - Wed, 16 Sep
United Airlines Logo
07:00 - 07:30
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 19:14
SNN
-
SEA
17h 44m
1 stop
€762United Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
05:00 - 07:30
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
09:30 - 21:36
SNN
-
SEA
20h 06m
2 stops
€766United Airlines
Mon, 7 Sep - Mon, 14 Sep
United Airlines Logo
23:59 - 10:15
SEA
-
SNN
26h 16m
2 stops
United Airlines Logo
12:30 - 21:55
SNN
-
SEA
17h 25m
1 stop
€781United Airlines
Thu, 1 Oct - Tue, 6 Oct
Multiple Airlines Logo
21:40 - 11:25
SEA
-
SNN
29h 45m
1 stop
Multiple Airlines Logo
12:40 - 20:40
SNN
-
SEA
40h 00m
2 stops
€784Multiple Airlines
Sun, 13 Sep - Mon, 21 Sep
United Airlines Logo
07:30 - 10:15
SEA
-
SNN
18h 45m
1 stop
United Airlines Logo
09:30 - 16:10
SNN
-
SEA
14h 40m
1 stop
€786United Airlines
Sun, 13 Sep - Sun, 20 Sep

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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
23 Aug
SEA05:00Seattle/Tacoma Intl
21h 15m
2 stops
SNN10:15Shannon
8 Sept
SNN09:30Shannon
16h 22m
2 stops
SEA17:52Seattle/Tacoma Intl
€709
United Airlines
23 Aug
SEA23:59Seattle/Tacoma Intl
26h 16m
2 stops
SNN10:15Shannon
8 Sept
SNN09:30Shannon
16h 22m
2 stops
SEA17:52Seattle/Tacoma Intl
€710
United Airlines
19 Aug
SEA11:03Seattle/Tacoma Intl
15h 12m
2 stops
SNN10:15Shannon
26 Aug
SNN09:30Shannon
17h 37m
1 stop
SEA19:07Seattle/Tacoma Intl
€718

Air Canada flights from Seattle to Shannon, Clare

Our best Air Canada deals on Seattle to Shannon, Clare flight tickets
Air Canada
13 Dec
SEA08:15Seattle/Tacoma Intl
24h 30m
2 stops
SNN16:45Shannon
22 Dec
SNN20:05Shannon
32h 54m
2 stops
SEA20:59Seattle/Tacoma Intl
€850
Air Canada
14 Dec
SEA08:15Seattle/Tacoma Intl
43h 15m
2 stops
SNN11:30Shannon
22 Dec
SNN20:05Shannon
32h 54m
2 stops
SEA20:59Seattle/Tacoma Intl
€865
Air Canada
16 Dec
SEA07:45Seattle/Tacoma Intl
43h 45m
2 stops
SNN11:30Shannon
23 Dec
SNN07:50Shannon
21h 09m
2 stops
SEA20:59Seattle/Tacoma Intl
€872

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 28 July 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 return flight

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 12/9

13:30-11:20

1 stop13h 50m

Shannon

Sun 20/9

16:50-11:35

1 stop26h 45m

€525

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 23/8

05:00-10:15

2 stops21h 15m

Shannon

Tue 8/9

09:30-17:52

2 stops16h 22m

€709

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 23/8

23:59-10:15

2 stops26h 16m

Shannon

Tue 8/9

09:30-17:52

2 stops16h 22m

€710
Fastest return journey

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/9

10:42-07:30

1 stop12h 48m

Shannon

Wed 16/9

12:30-23:36

1 stop19h 06m

€718

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/9

10:42-07:30

1 stop12h 48m

Shannon

Wed 16/9

09:30-23:04

2 stops21h 34m

€722

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

07:00-07:30

1 stop16h 30m

Shannon

Mon 14/9

09:30-19:14

1 stop17h 44m

€762

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

05:00-07:30

2 stops18h 30m

Shannon

Mon 14/9

09:30-21:36

2 stops20h 06m

€766

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 1/10

23:59-10:15

2 stops26h 16m

Shannon

Tue 6/10

12:30-21:55

1 stop17h 25m

€781

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 13/9

21:40-11:25

1 stop29h 45m

Shannon

Mon 21/9

12:40-20:40

2 stops40h 00m

€784

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 13/9

07:30-10:15

1 stop18h 45m

Shannon

Sun 20/9

09:30-16:10

1 stop14h 40m

€786

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

United Airlines and Aer Lingus are the most popular carriers operating from Seattle/Tacoma Intl to Shannon

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 return 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 48m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 12h 48m
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?

    Shannon is 7206.9 km away from Seattle/Tacoma Intl. By plane, this route typically takes 12h 48m.

  • 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 old do you have to be to fly from Seattle/Tacoma Intl Airport to Shannon Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Shannon Airport.

  • What documentation or ID do you need to fly to Shannon Airport?

    The required travel and health documents for your Shannon Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Shannon Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Shannon?

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

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Shannon?

Finding the right flight to Shannon from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Shannon quick and easy, saving you time and money.

Can I find flights from Seattle to Shannon with flexible booking policies on momondo?

All flight searches from Seattle to Shannon on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Seattle to Shannon?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Shannon.

I’m not ready to book a flight from Seattle to Shannon right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Shannon now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Shannon and let you know when they change.

An easier way to manage your Shannon, Clare trip

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