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

Aer Lingus is the most popular carrier operating from Shannon to Seattle/Tacoma Intl

When did momondo last update prices for flights from Shannon Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Shannon Airport to Seattle/Tacoma Intl Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Shannon Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl 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 license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$489 Cheap Flights from Shannon, Clare to Seattle in 2026

Find the cheapest flights from Shannon, Clare to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 11:25 amSNN Shannon-SEA Seattle/Tacoma Intl

25h 55m1 stop London Heathrow

6:45 pm - 4:45 pmSEA Seattle/Tacoma Intl-SNN Shannon

14h 00m1 stop London Heathrow

$870British Airways

Wed, Nov 11 - Sun, Nov 15

8:05 pm - 11:25 amSNN Shannon-SEA Seattle/Tacoma Intl

23h 20m1 stop London Heathrow

10:41 am - 11:30 amSEA Seattle/Tacoma Intl-SNN Shannon

16h 49m2 stops Chicago O'Hare Intl London Heathrow

$871British Airways

Wed, Nov 11 - Sun, Nov 15

8:05 pm - 11:25 amSNN Shannon-SEA Seattle/Tacoma Intl

23h 20m1 stop London Heathrow

10:41 am - 11:30 amSEA Seattle/Tacoma Intl-SNN Shannon

16h 49m2 stops Chicago O'Hare Intl London Heathrow

$872British Airways

Wed, Nov 11 - Sun, Nov 15

7:50 am - 12:35 amSNN Shannon-SEA Seattle/Tacoma Intl

24h 45m2 stops London Heathrow Chicago O'Hare Intl

3:50 pm - 4:45 pmSEA Seattle/Tacoma Intl-SNN Shannon

16h 55m2 stops Portland London Heathrow

$876British Airways

Wed, Nov 11 - Sun, Nov 15

7:50 am - 12:35 amSNN Shannon-SEA Seattle/Tacoma Intl

24h 45m2 stops London Heathrow Chicago O'Hare Intl

3:50 pm - 4:45 pmSEA Seattle/Tacoma Intl-SNN Shannon

16h 55m2 stops Portland London Heathrow

$877British Airways

Wed, Nov 11 - Sun, Nov 15

7:50 am - 12:35 amSNN Shannon-SEA Seattle/Tacoma Intl

24h 45m2 stops London Heathrow Chicago O'Hare Intl

3:50 pm - 4:45 pmSEA Seattle/Tacoma Intl-SNN Shannon

16h 55m2 stops Portland London Heathrow

$878British Airways

Wed, Nov 11 - Sun, Nov 15

9:30 am - 7:14 pmSNN Shannon-SEA Seattle/Tacoma Intl

17h 44m1 stop Chicago O'Hare Intl

2:10 pm - 11:15 amSEA Seattle/Tacoma Intl-SNN Shannon

13h 05m1 stop Frankfurt am Main

$964Lufthansa

Fri, Sep 18 - Fri, Sep 25

12:30 pm - 11:26 pmSNN Shannon-SEA Seattle/Tacoma Intl

18h 56m2 stops Newark San Francisco

7:00 am - 11:15 amSEA Seattle/Tacoma Intl-SNN Shannon

20h 15m2 stops Chicago O'Hare Intl Frankfurt am Main

$986Multiple Airlines

Fri, Sep 18 - Fri, Sep 25

1:05 pm - 6:45 pmSNN Shannon-SEA Seattle/Tacoma Intl

37h 40m2 stops New York John F Kennedy Intl Detroit Metropolitan Wayne County

10:40 pm - 11:10 amSEA Seattle/Tacoma Intl-SNN Shannon

28h 30m1 stop New York John F Kennedy Intl

$1,065Multiple Airlines

Mon, Aug 17 - Sun, Aug 23

9:30 am - 4:07 pmSNN Shannon-SEA Seattle/Tacoma Intl

14h 37m1 stop Chicago O'Hare Intl

11:00 pm - 10:15 amSEA Seattle/Tacoma Intl-SNN Shannon

27h 15m2 stops Chicago O'Hare Intl Newark

$1,087United Airlines

Mon, Aug 17 - Sun, Aug 23

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United Airlines flights from Shannon, Clare to Seattle

Our best United Airlines deals on Shannon, Clare to Seattle flight tickets

United Airlines

Aug 17

SNN9:30 amShannon

14h 37m

1 stop

SEA4:07 pmSeattle/Tacoma Intl

Aug 23

SEA11:00 pmSeattle/Tacoma Intl

27h 15m

2 stops

SNN10:15 amShannon

$1,087

United Airlines

Aug 17

SNN9:30 amShannon

14h 37m

1 stop

SEA4:07 pmSeattle/Tacoma Intl

Aug 23

SEA11:00 pmSeattle/Tacoma Intl

27h 15m

2 stops

SNN10:15 amShannon

$1,089

United Airlines

Aug 7

SNN9:30 amShannon

21h 40m

3 stops

SEA11:10 pmSeattle/Tacoma Intl

Aug 11

SEA8:40 amSeattle/Tacoma Intl

14h 50m

2 stops

SNN7:30 amShannon

$1,164

Lufthansa flights from Shannon, Clare to Seattle

Our best Lufthansa deals on Shannon, Clare to Seattle flight tickets

Lufthansa

Sep 18

SNN9:30 amShannon

17h 44m

1 stop

SEA7:14 pmSeattle/Tacoma Intl

Sep 25

SEA2:10 pmSeattle/Tacoma Intl

13h 05m

1 stop

SNN11:15 amShannon

$964

Lufthansa

Aug 17

SNN9:30 amShannon

17h 37m

1 stop

SEA7:07 pmSeattle/Tacoma Intl

Aug 23

SEA1:57 pmSeattle/Tacoma Intl

33h 33m

1 stop

SNN7:30 amShannon

$1,097

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

5:30 pm-11:25 am

1 stop25h 55m

Seattle/Tacoma Intl

Sun 11/15

6:45 pm-4:45 pm

1 stop14h 00m

$870

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

8:05 pm-11:25 am

1 stop23h 20m

Seattle/Tacoma Intl

Sun 11/15

10:41 am-11:30 am

2 stops16h 49m

$871

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

8:05 pm-11:25 am

1 stop23h 20m

Seattle/Tacoma Intl

Sun 11/15

10:41 am-11:30 am

2 stops16h 49m

$872

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

7:50 am-12:35 am

2 stops24h 45m

Seattle/Tacoma Intl

Sun 11/15

3:50 pm-4:45 pm

2 stops16h 55m

$876

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

7:50 am-12:35 am

2 stops24h 45m

Seattle/Tacoma Intl

Sun 11/15

3:50 pm-4:45 pm

2 stops16h 55m

$877

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Wed 11/11

7:50 am-12:35 am

2 stops24h 45m

Seattle/Tacoma Intl

Sun 11/15

3:50 pm-4:45 pm

2 stops16h 55m

$878

Quickest round-trip

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Fri 9/18

9:30 am-7:14 pm

1 stop17h 44m

Seattle/Tacoma Intl

Fri 9/25

2:10 pm-11:15 am

1 stop13h 05m

$964

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Fri 9/18

12:30 pm-11:26 pm

2 stops18h 56m

Seattle/Tacoma Intl

Fri 9/25

7:00 am-11:15 am

2 stops20h 15m

$986

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Mon 8/17

1:05 pm-6:45 pm

2 stops37h 40m

Seattle/Tacoma Intl

Sun 8/23

10:40 pm-11:10 am

1 stop28h 30m

$1,065

ShannonSeattle

SNN Shannon - SEA Seattle/Tacoma Intl

SNNSEA

Shannon

Mon 8/17

9:30 am-4:07 pm

1 stop14h 37m

Seattle/Tacoma Intl

Sun 8/23

11:00 pm-10:15 am

2 stops27h 15m

$1,087

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Shannon, Clare to Seattle

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

Prices

Airlines

Can stopping save me money on Shannon, Clare to Seattle flights?

You could potentially save up to 19% on your flight if you consider stops on a Shannon, Clare to Seattle flight.

When to book flights from Shannon, Clare to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Shannon, Clare to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Shannon, Clare to Seattle (SNN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Shannon, Clare to Seattle

Fastest flight time	17h 44m
Direct flights	None

The fastest flight from Shannon, Clare to Seattle takes 17h 44m

There are no direct flights from Shannon, Clare to Seattle. There are no popular flight routes from Shannon, Clare to Seattle.

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Frequently asked questions about flying from Shannon, Clare to Seattle

How far is Shannon to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 4478.2 mi away from Shannon. Flights usually cover this in 17h 44m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Shannon Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Shannon Airport to Seattle/Tacoma Intl Airport are updated daily.
How old do you have to be to fly from Shannon Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Shannon Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl 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 license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Yes. momondo allows you to filter the results for Shannon to Seattle flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Shannon.

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

Price alerts on flights to Seattle from Shannon are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.