Which layover airport has the shortest travel time from Seattle to Shannon, Clare?

Flights connecting via Newark (EWR) have the shortest average one-way travel time: 13h 15m.

Which layover airport has the shortest connection time from Seattle to Shannon, Clare?

Newark (EWR) has the shortest average layover time for this route: 2h 34m.

Which layover airport offers the lowest fares from Seattle to Shannon, Clare?

Flights via London (LHR) offer the lowest average round-trip price of $468.

Which airport is the most popular layover for flights between Seattle and Shannon, Clare?

Newark (EWR) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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 many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Shannon Airport?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Shannon Airport is 1 as of September 2026.

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

What documentation or ID do you need to fly to Shannon Airport?

The travel and health documents you'll need for your trip to Shannon Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$353 Cheap Flights from Seattle to Shannon, Clare in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Shannon

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One-way

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11:55 pm - 5:25 amSEA Seattle/Tacoma Intl-SNN Shannon

21h 30m1 stop Boston Logan Intl

7:50 am - 5:50 pmSNN Shannon-SEA Seattle/Tacoma Intl

17h 00m1 stop London Heathrow

$792Multiple Airlines

Thu, Oct 22 - Thu, Oct 29

1:30 pm - 11:30 amSEA Seattle/Tacoma Intl-SNN Shannon

14h 00m1 stop London Heathrow

7:50 am - 4:50 pmSNN Shannon-SEA Seattle/Tacoma Intl

17h 00m1 stop London Heathrow

$793Multiple Airlines

Tue, Nov 10 - Wed, Nov 18

10:43 am - 11:30 amSEA Seattle/Tacoma Intl-SNN Shannon

16h 47m2 stops Chicago O'Hare Intl London Heathrow

7:50 am - 4:50 pmSNN Shannon-SEA Seattle/Tacoma Intl

17h 00m1 stop London Heathrow

$798British Airways

Tue, Nov 10 - Wed, Nov 18

11:55 pm - 5:25 amSEA Seattle/Tacoma Intl-SNN Shannon

21h 30m1 stop Boston Logan Intl

7:50 am - 12:36 amSNN Shannon-SEA Seattle/Tacoma Intl

23h 46m2 stops London Heathrow Chicago O'Hare Intl

$802Multiple Airlines

Thu, Oct 22 - Thu, Oct 29

7:10 pm - 8:35 pmSEA Seattle/Tacoma Intl-SNN Shannon

17h 25m2 stops Dublin London Heathrow

9:15 pm - 5:10 pmSNN Shannon-SEA Seattle/Tacoma Intl

27h 55m2 stops London Heathrow Dublin

$805Aer Lingus

Tue, Oct 6 - Thu, Oct 15

7:10 pm - 8:35 pmSEA Seattle/Tacoma Intl-SNN Shannon

17h 25m2 stops Dublin London Heathrow

9:15 pm - 5:10 pmSNN Shannon-SEA Seattle/Tacoma Intl

27h 55m2 stops London Heathrow Dublin

$805Aer Lingus

Mon, Sep 28 - Mon, Oct 5

10:43 am - 11:30 amSEA Seattle/Tacoma Intl-SNN Shannon

16h 47m2 stops Chicago O'Hare Intl London Heathrow

7:50 am - 8:20 pmSNN Shannon-SEA Seattle/Tacoma Intl

20h 30m2 stops London Heathrow Chicago O'Hare Intl

$807British Airways

Tue, Nov 10 - Wed, Nov 18

7:40 pm - 9:30 pmSEA Seattle/Tacoma Intl-SNN Shannon

18h 50m1 stop London Heathrow

6:00 am - 6:05 pmSNN Shannon-SEA Seattle/Tacoma Intl

19h 05m1 stop London Stansted

$812Multiple Airlines

Tue, Oct 27 - Thu, Oct 29

11:14 pm - 10:15 amSEA Seattle/Tacoma Intl-SNN Shannon

27h 01m2 stops Washington, D.C. Dulles Intl Newark

12:30 pm - 9:55 pmSNN Shannon-SEA Seattle/Tacoma Intl

17h 25m1 stop Newark

$868United Airlines

Wed, Oct 7 - Wed, Oct 14

11:14 pm - 10:15 amSEA Seattle/Tacoma Intl-SNN Shannon

27h 01m2 stops Washington, D.C. Dulles Intl Newark

12:30 pm - 10:02 amSNN Shannon-SEA Seattle/Tacoma Intl

29h 32m2 stops Newark Denver Intl

$868United Airlines

Wed, Oct 7 - Wed, Oct 14

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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

Nov 10

SEA10:43 amSeattle/Tacoma Intl

16h 47m

2 stops

SNN11:30 amShannon

Nov 18

SNN7:50 amShannon

17h 00m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$798

British Airways

Nov 10

SEA10:43 amSeattle/Tacoma Intl

16h 47m

2 stops

SNN11:30 amShannon

Nov 18

SNN7:50 amShannon

20h 30m

2 stops

SEA8:20 pmSeattle/Tacoma Intl

$807

British Airways

Sep 28

SEA6:15 amSeattle/Tacoma Intl

21h 05m

2 stops

SNN11:20 amShannon

Oct 5

SNN9:15 pmShannon

22h 20m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$814

Aer Lingus flights from Seattle to Shannon, Clare

Our best Aer Lingus deals on Seattle to Shannon, Clare flight tickets

Aer Lingus

Sep 28

SEA7:10 pmSeattle/Tacoma Intl

17h 25m

2 stops

SNN8:35 pmShannon

Oct 5

SNN9:15 pmShannon

27h 55m

2 stops

SEA5:10 pmSeattle/Tacoma Intl

$805

Aer Lingus

Oct 22

SEA11:55 pmSeattle/Tacoma Intl

21h 30m

1 stop

SNN5:25 amShannon

Oct 29

SNN7:50 amShannon

17h 00m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

$863

Aer Lingus

Jan 24

SEA10:31 amSeattle/Tacoma Intl

22h 14m

2 stops

SNN4:45 pmShannon

Feb 7

SNN7:50 amShannon

17h 00m

1 stop

SEA4:50 pmSeattle/Tacoma Intl

$865

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Thu 10/22

11:55 pm-5:25 am

1 stop21h 30m

Shannon

Thu 10/29

7:50 am-5:50 pm

1 stop17h 00m

$792

Quickest round-trip

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Tue 11/10

1:30 pm-11:30 am

1 stop14h 00m

Shannon

Wed 11/18

7:50 am-4:50 pm

1 stop17h 00m

$793

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Tue 11/10

10:43 am-11:30 am

2 stops16h 47m

Shannon

Wed 11/18

7:50 am-4:50 pm

1 stop17h 00m

$798

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Thu 10/22

11:55 pm-5:25 am

1 stop21h 30m

Shannon

Thu 10/29

7:50 am-12:36 am

2 stops23h 46m

$802

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Tue 10/6

7:10 pm-8:35 pm

2 stops17h 25m

Shannon

Thu 10/15

9:15 pm-5:10 pm

2 stops27h 55m

$805

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Mon 9/28

7:10 pm-8:35 pm

2 stops17h 25m

Shannon

Mon 10/5

9:15 pm-5:10 pm

2 stops27h 55m

$805

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Tue 11/10

10:43 am-11:30 am

2 stops16h 47m

Shannon

Wed 11/18

7:50 am-8:20 pm

2 stops20h 30m

$807

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Tue 10/27

7:40 pm-9:30 pm

1 stop18h 50m

Shannon

Thu 10/29

6:00 am-6:05 pm

1 stop19h 05m

$812

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Wed 10/7

11:14 pm-10:15 am

2 stops27h 01m

Shannon

Wed 10/14

12:30 pm-9:55 pm

1 stop17h 25m

$868

SeattleShannon

SEA Seattle/Tacoma Intl - SNN Shannon

SEASNN

Seattle/Tacoma Intl

Wed 10/7

11:14 pm-10:15 am

2 stops27h 01m

Shannon

Wed 10/14

12:30 pm-10:02 am

2 stops29h 32m

$868

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 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

Prices

Layovers

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

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

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 round-trip 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

Best Price Found	$353
Fastest flight time	17h 25m
Direct flights	None

The best one-way flight to Shannon, Clare from Seattle in the past 72 hours is $353. The best round-trip flight deal from Seattle to Shannon, Clare found on momondo in the last 72 hours is $792.

The fastest flight from Seattle to Shannon, Clare takes 17h 25m

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?
The straight-line distance from Seattle/Tacoma Intl to Shannon is 4478.2 mi. By plane, this route typically takes 17h 25m.
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 many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Shannon Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Shannon Airport is 1 as of September 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Shannon 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 Seattle/Tacoma Intl Airport to Shannon Airport.
What documentation or ID do you need to fly to Shannon Airport?
The travel and health documents you'll need for your trip to Shannon Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Shannon Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Shannon, Clare?
Based on momondo bookings for flights between Seattle and Shannon, Clare, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Seattle to Shannon, Clare

Compare and see reviews for airlines that fly from Seattle to Shannon, Clare with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,194 reviews		Search United Airlines flights

Limerick

Ennis

Adare

Bunratty

Lahinch

Tipperary

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Shannon for you.

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

Yes. momondo enables you to select and highlight flights to Shannon from Seattle with this policy.

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

Once you have performed a search for Seattle to Shannon flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to Shannon flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Seattle to Shannon from $353

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 12/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from Seattle to Shannon, Clare

Our best British Airways deals on Seattle to Shannon, Clare flight tickets

Aer Lingus flights from Seattle to Shannon, Clare

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

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

Which airport is the most popular layover for flights between Seattle and Shannon, Clare?

Which layover airport offers the lowest fares from Seattle to Shannon, Clare?

Which layover airport has the shortest travel time from Seattle to Shannon, Clare?

Which layover airport has the shortest connection time from Seattle to Shannon, Clare?

When to book flights from Seattle to Shannon, Clare

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Shannon, Clare

Best airlines flying from Seattle to Shannon, Clare

Compare and see reviews for airlines that fly from Seattle to Shannon, Clare with momondo

Traveling to a place near Shannon?

Why use momondo?

An easier way to manage your Shannon, Clare trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Cabin classes currently available on flights to Shannon

List of cabin classes available on flights landing in Shannon. Availability may vary depending on flight origin and airline.

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