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Cheap flights from Seattle to Shannon from $326

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 7/13. 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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Find the cheapest flights from Seattle to Shannon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:22 pm - 10:15 am
SEA
-
SNN
37h 53m
2 stops
United Airlines Logo
12:30 pm - 11:27 pm
SNN
-
SEA
18h 57m
2 stops
$554United Airlines
mar., abr. 14 - sáb., abr. 25
United Airlines Logo
7:54 pm - 7:30 am
SEA
-
SNN
27h 36m
2 stops
United Airlines Logo
12:30 pm - 10:18 pm
SNN
-
SEA
41h 48m
2 stops
$605United Airlines
vie., jul. 31 - vie., ago. 14
Aer Lingus Logo
9:05 pm - 7:25 pm
SEA
-
SNN
15h 20m
2 stops
Aer Lingus Logo
4:50 pm - 5:10 pm
SNN
-
SEA
56h 20m
2 stops
$648Aer Lingus
dom., mar. 22 - lun., mar. 30
KLM Logo
11:20 am - 11:10 am
SEA
-
SNN
15h 50m
1 stop
KLM Logo
1:05 pm - 10:16 pm
SNN
-
SEA
17h 11m
1 stop
$649KLM
jue., may. 28 - mar., jun. 16
KLM Logo
7:15 am - 11:10 am
SEA
-
SNN
19h 55m
1 stop
KLM Logo
1:05 pm - 12:01 am
SNN
-
SEA
18h 56m
2 stops
$653KLM
jue., may. 28 - mar., jun. 16
United Airlines Logo
10:40 pm - 7:30 am
SEA
-
SNN
24h 50m
1 stop
United Airlines Logo
12:30 pm - 10:18 pm
SNN
-
SEA
41h 48m
2 stops
$662United Airlines
vie., jul. 31 - vie., ago. 14
British Airways Logo
1:35 pm - 11:20 am
SEA
-
SNN
13h 45m
1 stop
British Airways Logo
5:25 pm - 5:10 pm
SNN
-
SEA
31h 45m
2 stops
$695British Airways
mar., abr. 14 - sáb., abr. 25
Aer Lingus Logo
7:10 pm - 8:35 pm
SEA
-
SNN
17h 25m
2 stops
Aer Lingus Logo
9:15 pm - 5:10 pm
SNN
-
SEA
27h 55m
2 stops
$696Aer Lingus
dom., mar. 29 - dom., abr. 5
Air Canada Logo
10:05 am - 4:45 pm
SEA
-
SNN
22h 40m
2 stops
Air Canada Logo
7:50 am - 10:16 pm
SNN
-
SEA
21h 26m
2 stops
$706Air Canada
mié., mar. 4 - mié., mar. 11
Multiple Airlines Logo
1:35 pm - 11:20 am
SEA
-
SNN
13h 45m
1 stop
Multiple Airlines Logo
5:25 pm - 11:35 am
SNN
-
SEA
26h 10m
1 stop
$709Multiple Airlines
mar., abr. 14 - sáb., abr. 25

Lufthansa flights from Seattle to Shannon, Clare

Our best Lufthansa deals on Seattle to Shannon, Clare flight tickets
Lufthansa
May 18
SEA11:00 pmSeattle/Tacoma Intl
27h 15m
1 stop
SNN10:15 amShannon
May 26
SNN9:30 amShannon
14h 34m
1 stop
SEA4:04 pmSeattle/Tacoma Intl
$742
Lufthansa
May 18
SEA7:25 amSeattle/Tacoma Intl
18h 50m
1 stop
SNN10:15 amShannon
May 26
SNN12:30 pmShannon
19h 29m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
$836

United Airlines flights from Seattle to Shannon, Clare

Our best United Airlines deals on Seattle to Shannon, Clare flight tickets
United Airlines
Apr 14
SEA12:22 pmSeattle/Tacoma Intl
37h 53m
2 stops
SNN10:15 amShannon
Apr 25
SNN12:30 pmShannon
30h 09m
2 stops
SEA10:39 amSeattle/Tacoma Intl
$554
United Airlines
Jul 31
SEA7:54 pmSeattle/Tacoma Intl
27h 36m
2 stops
SNN7:30 amShannon
Aug 14
SNN12:30 pmShannon
41h 48m
2 stops
SEA10:18 pmSeattle/Tacoma Intl
$605
United Airlines
Jul 31
SEA10:40 pmSeattle/Tacoma Intl
24h 50m
1 stop
SNN7:30 amShannon
Aug 14
SNN12:30 pmShannon
41h 48m
2 stops
SEA10:18 pmSeattle/Tacoma Intl
$662

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 febrero 13, 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

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 4/14

12:22 pm-10:15 am

2 stops37h 53m

Shannon

sáb. 4/25

12:30 pm-11:27 pm

2 stops18h 57m

$554

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

vie. 7/31

7:54 pm-7:30 am

2 stops27h 36m

Shannon

vie. 8/14

12:30 pm-10:18 pm

2 stops41h 48m

$605

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

dom. 3/22

9:05 pm-7:25 pm

2 stops15h 20m

Shannon

lun. 3/30

4:50 pm-5:10 pm

2 stops56h 20m

$648

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

jue. 5/28

11:20 am-11:10 am

1 stop15h 50m

Shannon

mar. 6/16

1:05 pm-10:16 pm

1 stop17h 11m

$649

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

jue. 5/28

7:15 am-11:10 am

1 stop19h 55m

Shannon

mar. 6/16

1:05 pm-12:01 am

2 stops18h 56m

$653

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

vie. 7/31

10:40 pm-7:30 am

1 stop24h 50m

Shannon

vie. 8/14

12:30 pm-10:18 pm

2 stops41h 48m

$662

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 4/14

1:35 pm-11:20 am

1 stop13h 45m

Shannon

sáb. 4/25

5:25 pm-5:10 pm

2 stops31h 45m

$695

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

dom. 3/29

7:10 pm-8:35 pm

2 stops17h 25m

Shannon

dom. 4/5

9:15 pm-5:10 pm

2 stops27h 55m

$696

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mié. 3/4

10:05 am-4:45 pm

2 stops22h 40m

Shannon

mié. 3/11

7:50 am-10:16 pm

2 stops21h 26m

$706

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 4/14

1:35 pm-11:20 am

1 stop13h 45m

Shannon

sáb. 4/25

5:25 pm-11:35 am

1 stop26h 10m

$709

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 is the most popular carrier operating from Seattle/Tacoma Intl to Shannon

What airlines fly to Shannon, Clare?

American Airlines, United Airlines and British Airways are the top three most popular airlines that fly to Shannon, Clare from Seattle according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Shannon, Clare. Keep in mind that there are 5 different airlines that fly to Shannon, Clare on a routine basis, so you have a few additional options to choose from.

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

  • 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
7.2
11,275 reviews
Search American Airlines flights
United AirlinesPriceFrom $593Free CancellationRating
7.4
9,283 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
Adare
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.

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