Cheap Flights From Seattle - Tacoma Intl. (SEA) To Shannon (SNN)

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Cheapest Flights from Seattle (SEA) to Shannon (SNN)

The cheapest flights to Shannon found within the past 7 days were CA $993 round trip and CA $619 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $993 Roundtrip, found 5 days ago
CA $993
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $993 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $998 Roundtrip, found 5 days ago
CA $998
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $998 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,005 Roundtrip, found 5 days ago
CA $1,005
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,005 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,089 Roundtrip, found 5 days ago
CA $1,089
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,089 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,097 Roundtrip, found 5 days ago
CA $1,097
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,097 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,100 Roundtrip, found 5 days ago
CA $1,100
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,100 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,130 Roundtrip, found 5 days ago
CA $1,130
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,130 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,133 Roundtrip, found 5 days ago
CA $1,133
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,133 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,137 Roundtrip, found 5 days ago
CA $1,137
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,137 found 5 days ago
Wed, Aug 12 - Wed, Aug 19
SEA
Seattle
SNN
Shannon
CA $1,144 Roundtrip, found 5 days ago
CA $1,144
Roundtrip
found 5 days ago
Select Finnair flight, departing Wed, Aug 12 from Seattle to Shannon, returning Wed, Aug 19, priced at CA $1,144 found 5 days ago

Frequently asked questions

What airlines fly from Sea-Tac Airport to Shannon Airport (SNN)?
Unfortunately, there aren't any airlines that fly direct from Sea-Tac Airport to SNN. But don't let that get in the way of a good vacation. Use your layover time as an opportunity to check out the local fare, stretch your legs and potentially discover a new city to explore further one day.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.