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Cheap flights from Seattle to Shannon from €276

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 1/9. 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
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
10:47 - 07:30
SEA
-
SNN
12h 43m
1 stop
United Airlines Logo
09:30 - 15:36
SNN
-
SEA
14h 06m
1 stop
€643United Airlines
Mon, 7 Sep - Wed, 16 Sep
United Airlines Logo
05:00 - 07:30
SEA
-
SNN
18h 30m
2 stops
United Airlines Logo
09:30 - 21:11
SNN
-
SEA
19h 41m
2 stops
€647United Airlines
Mon, 7 Sep - Wed, 16 Sep
United Airlines Logo
23:10 - 10:15
SEA
-
SNN
51h 05m
2 stops
United Airlines Logo
09:30 - 18:59
SNN
-
SEA
17h 29m
1 stop
€657United Airlines
Fri, 4 Sep - Wed, 16 Sep
Delta Logo
07:15 - 11:10
SEA
-
SNN
19h 55m
1 stop
Delta Logo
13:05 - 22:16
SNN
-
SEA
17h 11m
1 stop
€658Delta
Tue, 4 Aug - Tue, 25 Aug
United Airlines Logo
19:05 - 07:30
SEA
-
SNN
28h 25m
2 stops
United Airlines Logo
09:30 - 22:42
SNN
-
SEA
21h 12m
1 stop
€662United Airlines
Tue, 4 Aug - Tue, 25 Aug
United Airlines Logo
22:40 - 07:30
SEA
-
SNN
24h 50m
1 stop
United Airlines Logo
09:30 - 15:36
SNN
-
SEA
14h 06m
1 stop
€663United Airlines
Tue, 4 Aug - Tue, 25 Aug
United Airlines Logo
07:01 - 07:30
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
09:30 - 18:59
SNN
-
SEA
17h 29m
1 stop
€700United Airlines
Mon, 3 Aug - Mon, 24 Aug
United Airlines Logo
07:01 - 07:30
SEA
-
SNN
16h 29m
1 stop
United Airlines Logo
09:30 - 23:24
SNN
-
SEA
21h 54m
3 stops
€705United Airlines
Mon, 3 Aug - Mon, 24 Aug
United Airlines Logo
10:47 - 07:30
SEA
-
SNN
12h 43m
1 stop
United Airlines Logo
09:30 - 22:42
SNN
-
SEA
21h 12m
1 stop
€709United Airlines
Mon, 14 Sep - Mon, 21 Sep
United Airlines Logo
18:00 - 07:30
SEA
-
SNN
29h 30m
2 stops
United Airlines Logo
09:30 - 23:11
SNN
-
SEA
21h 41m
2 stops
€713United Airlines
Fri, 14 Aug - Fri, 21 Aug

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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
7 Sept
SEA05:00Seattle/Tacoma Intl
18h 30m
2 stops
SNN07:30Shannon
16 Sept
SNN09:30Shannon
14h 06m
1 stop
SEA15:36Seattle/Tacoma Intl
€643
United Airlines
7 Sept
SEA05:00Seattle/Tacoma Intl
18h 30m
2 stops
SNN07:30Shannon
16 Sept
SNN09:30Shannon
19h 41m
2 stops
SEA21:11Seattle/Tacoma Intl
€647
United Airlines
4 Sept
SEA23:10Seattle/Tacoma Intl
51h 05m
2 stops
SNN10:15Shannon
16 Sept
SNN09:30Shannon
17h 29m
1 stop
SEA18:59Seattle/Tacoma Intl
€657

Air Canada flights from Seattle to Shannon, Clare

Our best Air Canada deals on Seattle to Shannon, Clare flight tickets
Air Canada
4 Aug
SEA08:00Seattle/Tacoma Intl
19h 20m
2 stops
SNN11:20Shannon
25 Aug
SNN07:30Shannon
23h 18m
3 stops
SEA22:48Seattle/Tacoma Intl
€846
Air Canada
4 Aug
SEA08:00Seattle/Tacoma Intl
19h 20m
2 stops
SNN11:20Shannon
25 Aug
SNN07:30Shannon
19h 02m
3 stops
SEA18:32Seattle/Tacoma Intl
€847
Air Canada
3 Aug
SEA08:00Seattle/Tacoma Intl
24h 10m
2 stops
SNN16:10Shannon
24 Aug
SNN07:30Shannon
19h 02m
3 stops
SEA18:32Seattle/Tacoma Intl
€864

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 29 April 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
Fastest return journey

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

10:47-07:30

1 stop12h 43m

Shannon

Wed 16/9

09:30-15:36

1 stop14h 06m

€643

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 7/9

05:00-07:30

2 stops18h 30m

Shannon

Wed 16/9

09:30-21:11

2 stops19h 41m

€647

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 4/9

23:10-10:15

2 stops51h 05m

Shannon

Wed 16/9

09:30-18:59

1 stop17h 29m

€657

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/8

07:15-11:10

1 stop19h 55m

Shannon

Tue 25/8

13:05-22:16

1 stop17h 11m

€658

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/8

19:05-07:30

2 stops28h 25m

Shannon

Tue 25/8

09:30-22:42

1 stop21h 12m

€662

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/8

22:40-07:30

1 stop24h 50m

Shannon

Tue 25/8

09:30-15:36

1 stop14h 06m

€663

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/8

07:01-07:30

1 stop16h 29m

Shannon

Mon 24/8

09:30-18:59

1 stop17h 29m

€700

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 3/8

07:01-07:30

1 stop16h 29m

Shannon

Mon 24/8

09:30-23:24

3 stops21h 54m

€705

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 14/9

10:47-07:30

1 stop12h 43m

Shannon

Mon 21/9

09:30-22:42

1 stop21h 12m

€709

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 14/8

18:00-07:30

2 stops29h 30m

Shannon

Fri 21/8

09:30-23:11

2 stops21h 41m

€713

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 Delta 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

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?

    Shannon is 7206.9 km away from Seattle/Tacoma Intl. 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 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
Bunratty
Lahinch

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.

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