
Popular airlines from Seattle-Tacoma International Airport (SEA) to Shannon Airport (SNN)
- United
United
- American Airlines
American Airlines
- Air Canada
Air Canada
- British Airways
British Airways
- Aer Lingus
Aer Lingus
- Delta
Delta
- Plan, book, fly with confidence
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Cheap flights from Seattle (SEA) to Shannon (SNN)
Prices were available within the past 7 days and start at CA $534 for one-way flights and CA $856 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Seattle (SEA) to Shannon (SNN)
August is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Shannon |
Airlines serving | Aer Lingus, Air Canada, American Airlines, British Airways, Delta, United |
Roundtrip price | CA $855 |
Distance | 7181 km |
Seattle to Shannon Flights
The easy way to book your flights from Seattle to Shannon
With Expedia, it’s simple to find and book flights to Shannon from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Shannon, too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Shannon today, tomorrow, or this week.
Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Shannon, SNN
Sort your search results by price to find great deals on your flight from Seattle to Shannon—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Shannon from Seattle currently is just CA $856 rising to CA $1,016.
Here are more money-saving tips:
- Fly in August when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Shannon
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Shannon from Seattle
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Shannon with Expedia today.
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Top Routes to Shannon
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Top Routes from Seattle
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Seattle Paine Field Intl. Airport
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