Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Shannon from $351

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 9/15. 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.
United Airlines Logo
8:30 am - 10:15 am
SEA
-
SNN
17h 45m
2 stops
United Airlines Logo
12:30 pm - 9:55 pm
SNN
-
SEA
17h 25m
1 stop
$770United Airlines
Tue, Oct 6 - Wed, Oct 14
United Airlines Logo
8:10 am - 10:15 am
SEA
-
SNN
18h 05m
2 stops
United Airlines Logo
12:30 pm - 10:56 pm
SNN
-
SEA
18h 26m
2 stops
$775United Airlines
Tue, Oct 6 - Wed, Oct 14
Delta Logo
7:20 am - 11:10 am
SEA
-
SNN
19h 50m
1 stop
Delta Logo
1:05 pm - 10:16 pm
SNN
-
SEA
17h 11m
1 stop
$803Delta
Sun, Sep 6 - Sat, Sep 19
United Airlines Logo
10:42 am - 7:30 am
SEA
-
SNN
12h 48m
1 stop
United Airlines Logo
9:30 am - 8:18 pm
SNN
-
SEA
18h 48m
2 stops
$808United Airlines
Sun, Sep 6 - Sat, Sep 19
United Airlines Logo
11:59 pm - 7:30 am
SEA
-
SNN
23h 31m
2 stops
United Airlines Logo
9:30 am - 11:26 pm
SNN
-
SEA
21h 56m
2 stops
$825United Airlines
Sat, Aug 22 - Sun, Aug 30
United Airlines Logo
8:56 am - 10:15 am
SEA
-
SNN
17h 19m
2 stops
United Airlines Logo
9:30 am - 7:07 pm
SNN
-
SEA
17h 37m
1 stop
$830United Airlines
Tue, Aug 4 - Tue, Aug 25
Delta Logo
10:40 pm - 11:10 am
SEA
-
SNN
28h 30m
1 stop
Delta Logo
1:05 pm - 10:24 am
SNN
-
SEA
29h 19m
1 stop
$831Delta
Sat, Aug 22 - Sun, Aug 30
United Airlines Logo
8:56 am - 10:15 am
SEA
-
SNN
17h 19m
2 stops
United Airlines Logo
9:30 am - 9:31 pm
SNN
-
SEA
20h 01m
2 stops
$835United Airlines
Tue, Aug 4 - Tue, Aug 25
United Airlines Logo
11:20 pm - 10:15 am
SEA
-
SNN
26h 55m
2 stops
United Airlines Logo
9:30 am - 7:56 am
SNN
-
SEA
30h 26m
2 stops
$839United Airlines
Sun, Jul 5 - Tue, Jul 21
United Airlines Logo
10:42 am - 7:30 am
SEA
-
SNN
12h 48m
1 stop
United Airlines Logo
12:30 pm - 9:55 pm
SNN
-
SEA
17h 25m
1 stop
$869United Airlines
Sun, Sep 20 - Sat, Sep 26

Aer Lingus flights from Seattle to Shannon, Clare

Our best Aer Lingus deals on Seattle to Shannon, Clare flight tickets
Aer Lingus
Sep 21
SEA7:10 pmSeattle/Tacoma Intl
17h 25m
2 stops
SNN8:35 pmShannon
Oct 27
SNN5:30 pmShannon
32h 50m
2 stops
SEA7:20 pmSeattle/Tacoma Intl
$913
Aer Lingus
Jun 30
SEA7:10 pmSeattle/Tacoma Intl
17h 25m
2 stops
SNN8:35 pmShannon
Jul 7
SNN9:15 pmShannon
27h 55m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$966
Aer Lingus
Jun 30
SEA7:10 pmSeattle/Tacoma Intl
17h 25m
2 stops
SNN8:35 pmShannon
Jul 7
SNN9:15 pmShannon
27h 55m
2 stops
SEA5:10 pmSeattle/Tacoma Intl
$967

Air Canada flights from Seattle to Shannon, Clare

Our best Air Canada deals on Seattle to Shannon, Clare flight tickets
Air Canada
Aug 25
SEA8:00 amSeattle/Tacoma Intl
24h 10m
2 stops
SNN4:10 pmShannon
Sep 8
SNN7:30 amShannon
23h 12m
3 stops
SEA10:42 pmSeattle/Tacoma Intl
$964
Air Canada
Sep 6
SEA8:00 amSeattle/Tacoma Intl
24h 10m
2 stops
SNN4:10 pmShannon
Sep 19
SNN7:30 amShannon
23h 12m
3 stops
SEA10:42 pmSeattle/Tacoma Intl
$998
Air Canada
Aug 4
SEA8:00 amSeattle/Tacoma Intl
19h 20m
2 stops
SNN11:20 amShannon
Aug 25
SNN7:30 amShannon
19h 02m
3 stops
SEA6:32 pmSeattle/Tacoma Intl
$1,021

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 May 20, 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 round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/6

8:30 am-10:15 am

2 stops17h 45m

Shannon

Wed 10/14

12:30 pm-9:55 pm

1 stop17h 25m

$770

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 10/6

8:10 am-10:15 am

2 stops18h 05m

Shannon

Wed 10/14

12:30 pm-10:56 pm

2 stops18h 26m

$775

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

7:20 am-11:10 am

1 stop19h 50m

Shannon

Sat 9/19

1:05 pm-10:16 pm

1 stop17h 11m

$803

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/6

10:42 am-7:30 am

1 stop12h 48m

Shannon

Sat 9/19

9:30 am-8:18 pm

2 stops18h 48m

$808

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/22

11:59 pm-7:30 am

2 stops23h 31m

Shannon

Sun 8/30

9:30 am-11:26 pm

2 stops21h 56m

$825

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

8:56 am-10:15 am

2 stops17h 19m

Shannon

Tue 8/25

9:30 am-7:07 pm

1 stop17h 37m

$830

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sat 8/22

10:40 pm-11:10 am

1 stop28h 30m

Shannon

Sun 8/30

1:05 pm-10:24 am

1 stop29h 19m

$831

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

8:56 am-10:15 am

2 stops17h 19m

Shannon

Tue 8/25

9:30 am-9:31 pm

2 stops20h 01m

$835

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 7/5

11:20 pm-10:15 am

2 stops26h 55m

Shannon

Tue 7/21

9:30 am-7:56 am

2 stops30h 26m

$839
Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 9/20

10:42 am-7:30 am

1 stop12h 48m

Shannon

Sat 9/26

12:30 pm-9:55 pm

1 stop17h 25m

$869

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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

You could potentially save up to 21% 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

Fastest flight time

12h 38m

Direct flights

None
The fastest flight from Seattle to Shannon, Clare takes 12h 38m
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 12h 38m.

  • 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 $469Free CancellationRating
7.1
11,642 reviews
Search American Airlines flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights

Traveling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Bunratty
Ennis
Adare
Lahinch
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
Fri 6/19
Fri 6/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland