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Cheap flights from Seattle to Shannon from €216

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 12/11. 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.
KLM Logo
22:40 - 11:10SEA  Seattle/Tacoma Intl-SNN Shannon
28h 30m1 stop New York John F Kennedy Intl
KLM Logo
13:05 - 20:21SNN  Shannon-SEA Seattle/Tacoma Intl
15h 16m1 stop New York John F Kennedy Intl
€696KLM
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
23:59 - 10:15SEA  Seattle/Tacoma Intl-SNN Shannon
26h 16m2 stops Houston George Bush Intcntl Newark
United Airlines Logo
09:30 - 16:07SNN  Shannon-SEA Seattle/Tacoma Intl
14h 37m1 stop Chicago O'Hare Intl
€707United Airlines
Sat, 5 Sep - Fri, 18 Sep
KLM Logo
13:25 - 11:10SEA  Seattle/Tacoma Intl-SNN Shannon
37h 45m2 stops Salt Lake City New York John F Kennedy Intl
KLM Logo
13:05 - 23:59SNN  Shannon-SEA Seattle/Tacoma Intl
18h 54m2 stops New York John F Kennedy Intl Salt Lake City
€710KLM
Sat, 5 Sep - Fri, 18 Sep
KLM Logo
13:25 - 11:10SEA  Seattle/Tacoma Intl-SNN Shannon
37h 45m2 stops Salt Lake City New York John F Kennedy Intl
KLM Logo
13:05 - 16:50SNN  Shannon-SEA Seattle/Tacoma Intl
35h 45m2 stops New York John F Kennedy Intl Salt Lake City
€735KLM
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
10:42 - 10:15SEA  Seattle/Tacoma Intl-SNN Shannon
15h 33m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
09:30 - 23:04SNN  Shannon-SEA Seattle/Tacoma Intl
21h 34m2 stops Chicago O'Hare Intl Denver Intl
€740United Airlines
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
07:00 - 07:30SEA  Seattle/Tacoma Intl-SNN Shannon
16h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
09:30 - 22:45SNN  Shannon-SEA Seattle/Tacoma Intl
21h 15m1 stop Chicago O'Hare Intl
€747United Airlines
Sat, 5 Sep - Fri, 18 Sep
United Airlines Logo
06:30 - 07:30SEA  Seattle/Tacoma Intl-SNN Shannon
17h 00m2 stops Los Angeles Los Angeles Chicago O'Hare Intl
United Airlines Logo
09:30 - 17:42SNN  Shannon-SEA Seattle/Tacoma Intl
16h 12m2 stops Chicago O'Hare Intl Denver Intl
€750United Airlines
Sat, 5 Sep - Fri, 18 Sep
Multiple Airlines Logo
19:00 - 20:50SEA  Seattle/Tacoma Intl-SNN Shannon
17h 50m2 stops Reykjavik Keflavik Intl London Gatwick
Multiple Airlines Logo
17:30 - 18:00SNN  Shannon-SEA Seattle/Tacoma Intl
31h 30m2 stops London Heathrow Reykjavik Keflavik Intl
€831Multiple Airlines
Thu, 15 Oct - Thu, 29 Oct
United Airlines Logo
13:00 - 10:15SEA  Seattle/Tacoma Intl-SNN Shannon
13h 15m1 stop Newark
United Airlines Logo
09:30 - 22:43SNN  Shannon-SEA Seattle/Tacoma Intl
21h 13m1 stop Chicago O'Hare Intl
€842United Airlines
Sun, 30 Aug - Sun, 6 Sep
United Airlines Logo
05:00 - 07:30SEA  Seattle/Tacoma Intl-SNN Shannon
18h 30m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
09:30 - 21:41SNN  Shannon-SEA Seattle/Tacoma Intl
20h 11m2 stops Chicago O'Hare Intl Los Angeles Los Angeles
€845United Airlines
Sun, 30 Aug - Sun, 6 Sep

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KLM flights from Seattle to Shannon, Clare

Our best KLM deals on Seattle to Shannon, Clare flight tickets
KLM
5 Sept
SEA22:40Seattle/Tacoma Intl
28h 30m
1 stop
SNN11:10Shannon
18 Sept
SNN13:05Shannon
15h 16m
1 stop
SEA20:21Seattle/Tacoma Intl
€696
KLM
5 Sept
SEA13:25Seattle/Tacoma Intl
37h 45m
2 stops
SNN11:10Shannon
18 Sept
SNN13:05Shannon
18h 54m
2 stops
SEA23:59Seattle/Tacoma Intl
€710
KLM
5 Sept
SEA13:25Seattle/Tacoma Intl
37h 45m
2 stops
SNN11:10Shannon
18 Sept
SNN13:05Shannon
35h 45m
2 stops
SEA16:50Seattle/Tacoma Intl
€734

United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
5 Sept
SEA23:59Seattle/Tacoma Intl
26h 16m
2 stops
SNN10:15Shannon
18 Sept
SNN09:30Shannon
14h 37m
1 stop
SEA16:07Seattle/Tacoma Intl
€707
United Airlines
5 Sept
SEA10:42Seattle/Tacoma Intl
15h 33m
2 stops
SNN10:15Shannon
18 Sept
SNN09:30Shannon
21h 34m
2 stops
SEA23:04Seattle/Tacoma Intl
€740
United Airlines
5 Sept
SEA07:00Seattle/Tacoma Intl
16h 30m
1 stop
SNN07:30Shannon
18 Sept
SNN09:30Shannon
21h 15m
1 stop
SEA22:45Seattle/Tacoma Intl
€747

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 10 August 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 Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

22:40-11:10

1 stop28h 30m

Shannon

Fri 18/9

13:05-20:21

1 stop15h 16m

€696

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

23:59-10:15

2 stops26h 16m

Shannon

Fri 18/9

09:30-16:07

1 stop14h 37m

€707

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

13:25-11:10

2 stops37h 45m

Shannon

Fri 18/9

13:05-23:59

2 stops18h 54m

€710

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

13:25-11:10

2 stops37h 45m

Shannon

Fri 18/9

13:05-16:50

2 stops35h 45m

€734

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

10:42-10:15

2 stops15h 33m

Shannon

Fri 18/9

09:30-23:04

2 stops21h 34m

€740

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

07:00-07:30

1 stop16h 30m

Shannon

Fri 18/9

09:30-22:45

1 stop21h 15m

€747
Fastest return journey

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sat 5/9

06:30-07:30

2 stops17h 00m

Shannon

Fri 18/9

09:30-17:42

2 stops16h 12m

€750

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Thu 15/10

19:00-20:50

2 stops17h 50m

Shannon

Thu 29/10

17:30-18:00

2 stops31h 30m

€831

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sun 30/8

13:00-10:15

1 stop13h 15m

Shannon

Sun 6/9

09:30-22:43

1 stop21h 13m

€842

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Sun 30/8

05:00-07:30

2 stops18h 30m

Shannon

Sun 6/9

09:30-21:41

2 stops20h 11m

€845

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?

British Airways, American Airlines, and United Airlines 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

17h 30m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 17h 30m
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 17h 30m.

  • 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
Lahinch
Nenagh
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.

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