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Cheap flights from Seattle to Shannon from €281

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 12/8. 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 return flights

Enter your travel dates to find the best prices.
United Airlines Logo
23:10 - 10:15
SEA
-
SNN
27h 05m
2 stops
United Airlines Logo
09:30 - 21:11
SNN
-
SEA
19h 41m
2 stops
€610United Airlines
Sun, 23 Aug - Thu, 27 Aug
United Airlines Logo
10:47 - 07:30
SEA
-
SNN
12h 43m
1 stop
United Airlines Logo
09:30 - 15:36
SNN
-
SEA
14h 06m
1 stop
€611United Airlines
Mon, 24 Aug - Mon, 31 Aug
United Airlines Logo
22:35 - 10:15
SEA
-
SNN
27h 40m
2 stops
United Airlines Logo
12:30 - 22:42
SNN
-
SEA
18h 12m
2 stops
€614United Airlines
Mon, 20 Apr - Mon, 27 Apr
United Airlines Logo
07:00 - 07:30
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 22:42
SNN
-
SEA
21h 12m
1 stop
€650United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
07:00 - 07:30
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 21:56
SNN
-
SEA
20h 26m
2 stops
€653United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
18:00 - 07:30
SEA
-
SNN
29h 30m
2 stops
United Airlines Logo
09:30 - 18:29
SNN
-
SEA
16h 59m
2 stops
€654United Airlines
Sat, 22 Aug - Wed, 26 Aug
United Airlines Logo
08:10 - 10:15
SEA
-
SNN
18h 05m
2 stops
United Airlines Logo
12:30 - 18:00
SNN
-
SEA
37h 30m
2 stops
€671United Airlines
Tue, 5 May - Tue, 12 May
United Airlines Logo
13:06 - 10:15
SEA
-
SNN
13h 09m
1 stop
United Airlines Logo
09:30 - 19:06
SNN
-
SEA
17h 36m
1 stop
€680United Airlines
Wed, 27 May - Mon, 1 Jun
United Airlines Logo
07:40 - 10:15
SEA
-
SNN
18h 35m
2 stops
United Airlines Logo
09:30 - 21:10
SNN
-
SEA
19h 40m
2 stops
€683United Airlines
Wed, 27 May - Mon, 1 Jun
United Airlines Logo
07:00 - 07:30
SEA
-
SNN
16h 30m
1 stop
United Airlines Logo
09:30 - 15:36
SNN
-
SEA
14h 06m
1 stop
€693United Airlines
Sat, 22 Aug - Wed, 26 Aug

United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
23 Aug
SEA19:35Seattle/Tacoma Intl
27h 55m
2 stops
SNN07:30Shannon
27 Aug
SNN09:30Shannon
17h 29m
1 stop
SEA18:59Seattle/Tacoma Intl
€610
United Airlines
24 Aug
SEA10:47Seattle/Tacoma Intl
12h 43m
1 stop
SNN07:30Shannon
31 Aug
SNN09:30Shannon
14h 06m
1 stop
SEA15:36Seattle/Tacoma Intl
€611
United Airlines
20 Apr
SEA22:35Seattle/Tacoma Intl
27h 40m
2 stops
SNN10:15Shannon
27 Apr
SNN12:30Shannon
18h 12m
2 stops
SEA22:42Seattle/Tacoma Intl
€614

Aer Lingus flights from Seattle to Shannon, Clare

Our best Aer Lingus deals on Seattle to Shannon, Clare flight tickets
Aer Lingus
6 May
SEA19:10Seattle/Tacoma Intl
17h 25m
2 stops
SNN20:35Shannon
13 May
SNN13:45Shannon
28h 35m
1 stop
SEA10:20Seattle/Tacoma Intl
€781
Aer Lingus
14 Apr
SEA19:10Seattle/Tacoma Intl
17h 25m
2 stops
SNN20:35Shannon
25 Apr
SNN07:30Shannon
17h 40m
2 stops
SEA17:10Seattle/Tacoma Intl
€799

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 25 March 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

Sun 23/8

23:10-10:15

2 stops27h 05m

Shannon

Thu 27/8

09:30-21:11

2 stops19h 41m

€610
Fastest return journey

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 24/8

10:47-07:30

1 stop12h 43m

Shannon

Mon 31/8

09:30-15:36

1 stop14h 06m

€611

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 20/4

22:35-10:15

2 stops27h 40m

Shannon

Mon 27/4

12:30-22:42

2 stops18h 12m

€614

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 22/8

07:00-07:30

1 stop16h 30m

Shannon

Wed 26/8

09:30-22:42

1 stop21h 12m

€650

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 22/8

07:00-07:30

1 stop16h 30m

Shannon

Wed 26/8

09:30-21:56

2 stops20h 26m

€653

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 22/8

18:00-07:30

2 stops29h 30m

Shannon

Wed 26/8

09:30-18:29

2 stops16h 59m

€654

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 5/5

08:10-10:15

2 stops18h 05m

Shannon

Tue 12/5

12:30-18:00

2 stops37h 30m

€671

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 27/5

13:06-10:15

1 stop13h 09m

Shannon

Mon 1/6

09:30-19:06

1 stop17h 36m

€680

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 27/5

07:40-10:15

2 stops18h 35m

Shannon

Mon 1/6

09:30-21:10

2 stops19h 40m

€683

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 22/8

07:00-07:30

1 stop16h 30m

Shannon

Wed 26/8

09:30-15:36

1 stop14h 06m

€693

Flights are sorted by cheapest return 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?

United Airlines is the most popular carrier 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 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?

    Shannon is 7206.9 km away from Seattle/Tacoma Intl. 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 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
Killaloe
Nenagh
Adare
Lahinch
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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