Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Shannon from $363

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 11/12. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:50 pm - 4:45 pmSEA-SNN
13h 55m1 stop
American Airlines Logo
7:50 am - 4:55 pmSNN-SEA
17h 05m1 stop
$495American Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
American Airlines Logo
10:39 am - 4:45 pmSEA-SNN
22h 06m2 stops
American Airlines Logo
7:50 am - 4:55 pmSNN-SEA
17h 05m1 stop
$500American Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
American Airlines Logo
10:39 am - 4:45 pmSEA-SNN
22h 06m2 stops
American Airlines Logo
7:50 am - 11:25 pmSNN-SEA
23h 35m2 stops
$510American Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Air Canada Logo
10:05 am - 11:30 amSEA-SNN
41h 25m2 stops
Air Canada Logo
8:05 pm - 2:31 pmSNN-SEA
50h 26m2 stops
$640Air Canada
Find Deal
Tue, Nov 25 - Tue, Dec 2
Air Canada Logo
10:05 am - 4:45 pmSEA-SNN
22h 40m2 stops
Air Canada Logo
7:50 am - 9:31 amSNN-SEA
33h 41m3 stops
$670Air Canada
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
3:40 pm - 7:25 pmSEA-SNN
19h 45m2 stops
Multiple Airlines Logo
7:50 am - 9:31 amSNN-SEA
33h 41m3 stops
$677Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
1:35 pm - 4:45 pmSEA-SNN
19h 10m2 stops
Multiple Airlines Logo
2:45 pm - 11:18 pmSNN-SEA
40h 33m2 stops
$697Multiple Airlines
Find Deal
Wed, Nov 12 - Fri, Nov 21
British Airways Logo
8:05 pm - 11:30 amSEA-SNN
31h 25m2 stops
British Airways Logo
8:05 pm - 11:30 amSNN-SEA
23h 25m1 stop
$717British Airways
Find Deal
Fri, Nov 28 - Fri, Dec 5
British Airways Logo
12:59 am - 6:20 amSEA-SNN
21h 21m2 stops
British Airways Logo
7:50 am - 10:24 pmSNN-SEA
22h 34m2 stops
$849British Airways
Find Deal
Mon, Nov 24 - Tue, Dec 2
Aer Lingus Logo
6:50 pm - 4:45 pmSEA-SNN
13h 55m1 stop
Aer Lingus Logo
5:25 pm - 6:20 pmSNN-SEA
32h 55m2 stops
$1,583Aer Lingus
Find Deal
Sat, Dec 27 - Sat, Jan 3

American Airlines flights from Seattle to Shannon, Clare

Our best American Airlines deals on Seattle to Shannon, Clare flight tickets
American Airlines
Nov 27
SEA6:50 pmSeattle/Tacoma Intl
13h 55m
1 stop
SNN4:45 pmShannon
Dec 4
SNN7:50 amShannon
17h 05m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$495
Find similar
American Airlines
Nov 27
SEA10:39 amSeattle/Tacoma Intl
22h 06m
2 stops
SNN4:45 pmShannon
Dec 4
SNN7:50 amShannon
17h 05m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$500
Find similar
American Airlines
Nov 27
SEA10:39 amSeattle/Tacoma Intl
22h 06m
2 stops
SNN4:45 pmShannon
Dec 4
SNN7:50 amShannon
23h 35m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
$510
Find similar

British Airways flights from Seattle to Shannon, Clare

Our best British Airways deals on Seattle to Shannon, Clare flight tickets
British Airways
Nov 28
SEA8:05 pmSeattle/Tacoma Intl
31h 25m
2 stops
SNN11:30 amShannon
Dec 5
SNN8:05 pmShannon
23h 25m
1 stop
SEA11:30 amSeattle/Tacoma Intl
$717
Find similar
British Airways
Nov 24
SEA12:59 amSeattle/Tacoma Intl
21h 21m
2 stops
SNN6:20 amShannon
Dec 2
SNN7:50 amShannon
22h 34m
2 stops
SEA10:24 pmSeattle/Tacoma Intl
$849
Find similar
British Airways
Dec 13
SEA10:38 amSeattle/Tacoma Intl
16h 52m
2 stops
SNN11:30 amShannon
Dec 20
SNN5:25 pmShannon
32h 55m
2 stops
SEA6:20 pmSeattle/Tacoma Intl
$1,019
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated October 30, 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

Thu 11/27

6:50 pm-4:45 pm

1 stop13h 55m

Shannon

Thu 12/4

7:50 am-4:55 pm

1 stop17h 05m

$495

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 11/27

10:39 am-4:45 pm

2 stops22h 06m

Shannon

Thu 12/4

7:50 am-4:55 pm

1 stop17h 05m

$500

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 11/27

10:39 am-4:45 pm

2 stops22h 06m

Shannon

Thu 12/4

7:50 am-11:25 pm

2 stops23h 35m

$510

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 11/25

10:05 am-11:30 am

2 stops41h 25m

Shannon

Tue 12/2

8:05 pm-2:31 pm

2 stops50h 26m

$640

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 11/27

10:05 am-4:45 pm

2 stops22h 40m

Shannon

Thu 12/4

7:50 am-9:31 am

3 stops33h 41m

$670

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Thu 11/27

3:40 pm-7:25 pm

2 stops19h 45m

Shannon

Thu 12/4

7:50 am-9:31 am

3 stops33h 41m

$677

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 11/12

1:35 pm-4:45 pm

2 stops19h 10m

Shannon

Fri 11/21

2:45 pm-11:18 pm

2 stops40h 33m

$697

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 11/28

8:05 pm-11:30 am

2 stops31h 25m

Shannon

Fri 12/5

8:05 pm-11:30 am

1 stop23h 25m

$717

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 11/24

12:59 am-6:20 am

2 stops21h 21m

Shannon

Tue 12/2

7:50 am-10:24 pm

2 stops22h 34m

$849

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 12/27

6:50 pm-4:45 pm

1 stop13h 55m

Shannon

Sat 1/3

5:25 pm-6:20 pm

2 stops32h 55m

$1,583

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 day to depart on your flight to Shannon, Clare?

The cheapest day to depart from Seattle to Shannon, Clare is on a Tuesday when prices can be found for as low as $745. The most expensive day to fly to Shannon, Clare is Saturday, with ticket prices averaging around $1,142.

What is the cheapest time of day to depart on your flight to Shannon, Clare?

Our data shows that the cheapest Seattle to Shannon, Clare flights are usually those with departure times in the afternoon. Our users have found flights to Shannon, Clare in the afternoon for as low as $789. Flights in the evening are often more expensive with an average ticket price of $895.

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

Direct flights

None
There are no direct flights from Seattle to Shannon, Clare. There are no popular flight routes from Seattle to Shannon, Clare.
Search flight deals

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

  • 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?

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
American AirlinesPriceFrom $520Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Aer LingusPriceFrom $715Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Adare
Bunratty
Lahinch
Ennis
Nenagh

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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland