Air Canada Cheap Flights from Seattle to Shannon

View €414 flight on Wed, 19 Nov 2025Opens in a new window
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Prices were available within the past 7 days and start at €414 for one-way flights and €678 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 6 Oct - Tue, 21 Oct
SEA
Seattle
SNN
Shannon
€678 Return, found 18 hours ago
€678
Return
found 18 hours ago
Select Air Canada flight, departing Mon, 6 Oct from Seattle to Shannon, returning Tue, 21 Oct, priced at €678 found 18 hours ago
Air Canada
Mon, 6 Oct - Tue, 21 Oct
SEA
Seattle
SNN
Shannon
€684 Return, found 18 hours ago
€684
Return
found 18 hours ago
Select Air Canada flight, departing Mon, 6 Oct from Seattle to Shannon, returning Tue, 21 Oct, priced at €684 found 18 hours ago
Seattle to Shannon route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, JetBlue Airways, United
Popular airline
American Airlines
Distance
7181 km

Frequently asked questions

How much is an Air Canada flight from Seattle - Tacoma Intl. Airport (SEA) to Shannon Airport (SNN)?
Finding cheap one-way Air Canada flights from SEA to SNN from €414 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from €678 for your next exciting holiday.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to SNN with Air Canada?
January is one of the least expensive months to get away to Shannon with Air Canada. You could also find great deals on return and one-way fares in February.
Does Air Canada fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Shannon Airport (SNN)?
Fill in your dates, hit search and tick the "Nonstop" filter on Expedia to find any direct flights from SEA to SNN with Air Canada or another airline.
What airports does Air Canada fly into in Shannon?
Air Canada flights from Seattle - Tacoma Intl. Airport (SEA) to Shannon land at Shannon Airport (SNN). This is the main gateway to this city.
Can I change or cancel my Air Canada flight from Seattle - Tacoma Intl. Airport (SEA) to Shannon Airport (SNN)?
Changes are often free within 24 hours of making a booking, but your airline may add a charge after that. For more details about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to update your itinerary without additional charges, tick the "Changes included" and "No cancel fee" filters when planning your trip.
*Available to Expedia members.