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Cheap flights from Seattle to Shannon from €306

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 9/5. 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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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
18:50 - 16:45SEA-SNN
13h 55m1 stop
American Airlines Logo
07:50 - 21:59SNN-SEA
22h 09m2 stops
€411American Airlines
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Mon, 5 Jan - Sun, 18 Jan
American Airlines Logo
18:50 - 16:45SEA-SNN
13h 55m1 stop
American Airlines Logo
07:50 - 20:45SNN-SEA
20h 55m2 stops
€416American Airlines
Find Deal
Mon, 5 Jan - Mon, 12 Jan
American Airlines Logo
18:50 - 16:45SEA-SNN
13h 55m1 stop
American Airlines Logo
07:50 - 17:55SNN-SEA
17h 05m1 stop
€450American Airlines
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Thu, 5 Mar - Thu, 12 Mar
American Airlines Logo
07:15 - 11:30SEA-SNN
20h 15m2 stops
American Airlines Logo
07:50 - 17:55SNN-SEA
17h 05m1 stop
€454American Airlines
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Thu, 5 Mar - Thu, 12 Mar
American Airlines Logo
13:35 - 20:35SEA-SNN
23h 00m1 stop
American Airlines Logo
07:40 - 23:05SNN-SEA
23h 25m2 stops
€459American Airlines
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Tue, 14 Apr - Sat, 25 Apr
American Airlines Logo
07:15 - 11:30SEA-SNN
20h 15m2 stops
American Airlines Logo
07:50 - 23:08SNN-SEA
22h 18m2 stops
€462American Airlines
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Thu, 5 Mar - Thu, 12 Mar
United Airlines Logo
12:20 - 10:15SEA-SNN
13h 55m1 stop
United Airlines Logo
12:30 - 22:59SNN-SEA
18h 29m2 stops
€470United Airlines
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Thu, 30 Apr - Thu, 7 May
United Airlines Logo
14:16 - 10:15SEA-SNN
35h 59m2 stops
United Airlines Logo
12:30 - 01:14SNN-SEA
20h 44m2 stops
€475United Airlines
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Sat, 4 Apr - Sat, 25 Apr
American Airlines Logo
13:35 - 11:20SEA-SNN
13h 45m1 stop
American Airlines Logo
07:40 - 18:25SNN-SEA
18h 45m1 stop
€498American Airlines
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Thu, 30 Apr - Thu, 7 May
United Airlines Logo
07:00 - 10:15SEA-SNN
19h 15m2 stops
United Airlines Logo
12:30 - 22:54SNN-SEA
18h 24m2 stops
€535United Airlines
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Sun, 5 Apr - Sat, 25 Apr

United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
30 Apr
SEA12:20Seattle/Tacoma Intl
13h 55m
1 stop
SNN10:15Shannon
7 May
SNN12:30Shannon
18h 29m
2 stops
SEA22:59Seattle/Tacoma Intl
€470
Find similar
United Airlines
4 Apr
SEA14:16Seattle/Tacoma Intl
35h 59m
2 stops
SNN10:15Shannon
25 Apr
SNN12:30Shannon
20h 44m
2 stops
SEA01:14Seattle/Tacoma Intl
€475
Find similar
United Airlines
5 Apr
SEA07:00Seattle/Tacoma Intl
19h 15m
2 stops
SNN10:15Shannon
25 Apr
SNN12:30Shannon
18h 24m
2 stops
SEA22:54Seattle/Tacoma Intl
€535
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British Airways flights from Seattle to Shannon, Clare

Our best British Airways deals on Seattle to Shannon, Clare flight tickets
British Airways
4 Mar
SEA18:50Seattle/Tacoma Intl
13h 55m
1 stop
SNN16:45Shannon
12 Mar
SNN07:50Shannon
17h 05m
1 stop
SEA17:55Seattle/Tacoma Intl
€563
Find similar
British Airways
3 Mar
SEA13:25Seattle/Tacoma Intl
19h 20m
1 stop
SNN16:45Shannon
11 Mar
SNN07:50Shannon
17h 05m
1 stop
SEA17:55Seattle/Tacoma Intl
€582
Find similar
British Airways
3 Mar
SEA07:15Seattle/Tacoma Intl
25h 30m
2 stops
SNN16:45Shannon
10 Mar
SNN07:50Shannon
17h 05m
1 stop
SEA17:55Seattle/Tacoma Intl
€586
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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 21 November 2025.
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

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/1

18:50-16:45

1 stop13h 55m

Shannon

Sun 18/1

07:50-21:59

2 stops22h 09m

€411

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 5/1

18:50-16:45

1 stop13h 55m

Shannon

Mon 12/1

07:50-20:45

2 stops20h 55m

€416

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/3

18:50-16:45

1 stop13h 55m

Shannon

Thu 12/3

07:50-17:55

1 stop17h 05m

€450

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/3

07:15-11:30

2 stops20h 15m

Shannon

Thu 12/3

07:50-17:55

1 stop17h 05m

€454

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 14/4

13:35-20:35

1 stop23h 00m

Shannon

Sat 25/4

07:40-23:05

2 stops23h 25m

€459

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 5/3

07:15-11:30

2 stops20h 15m

Shannon

Thu 12/3

07:50-23:08

2 stops22h 18m

€462

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 30/4

12:20-10:15

1 stop13h 55m

Shannon

Thu 7/5

12:30-22:59

2 stops18h 29m

€470

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 4/4

14:16-10:15

2 stops35h 59m

Shannon

Sat 25/4

12:30-01:14

2 stops20h 44m

€475

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 30/4

13:35-11:20

1 stop13h 45m

Shannon

Thu 7/5

07:40-18:25

1 stop18h 45m

€498

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 5/4

07:00-10:15

2 stops19h 15m

Shannon

Sat 25/4

12:30-22:54

2 stops18h 24m

€535

Flights are sorted by cheapest return 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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Shannon?

United Airlines, American Airlines, and JetBlue 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

Direct flights

None
There are no direct flights from Seattle to Shannon, Clare. There are no popular flight routes from Seattle to Shannon, Clare.
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  • 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 55m.

  • 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
Nenagh
Tipperary
Adare
Killaloe
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.

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