S$629 Cheap Flights from Seattle to Shannon

View S$629 flight on Sat, 1 Nov, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Shannon Airport (SNN)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle to Shannon (SEA-SNN)

Prices were available within the past 7 days and start at S$629 for one-way flights and S$1,364 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,364 Return, found 2 days ago
S$1,364
Return
found 2 days ago
Select Air Canada flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,364 found 2 days ago
Air Canada
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,371 Return, found 2 days ago
S$1,371
Return
found 2 days ago
Select Air Canada flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,371 found 2 days ago
Air Canada
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,372 Return, found 2 days ago
S$1,372
Return
found 2 days ago
Select Air Canada flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,372 found 2 days ago
Alaska Airlines
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,384 Return, found 2 days ago
S$1,384
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,384 found 2 days ago
Alaska Airlines
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,391 Return, found 2 days ago
S$1,391
Return
found 2 days ago
Select Alaska Airlines flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,391 found 2 days ago
United
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,404 Return, found 2 days ago
S$1,404
Return
found 2 days ago
Select United flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,404 found 2 days ago
American Airlines
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,405 Return, found 2 days ago
S$1,405
Return
found 2 days ago
Select American Airlines flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,405 found 2 days ago
American Airlines
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,407 Return, found 2 days ago
S$1,407
Return
found 2 days ago
Select American Airlines flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,407 found 2 days ago
American Airlines
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,408 Return, found 2 days ago
S$1,408
Return
found 2 days ago
Select American Airlines flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,408 found 2 days ago
British Airways
Sat, 1 Nov - Thu, 6 Nov
SEA
Seattle
SNN
Shannon
S$1,423 Return, found 2 days ago
S$1,423
Return
found 2 days ago
Select British Airways flight, departing Sat, 1 Nov from Seattle to Shannon, returning Thu, 6 Nov, priced at S$1,423 found 2 days ago
Seattle to Shannon route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Shannon
Return price
S$1,363
Distance
7181 km

Perfect flights from Seattle to Shannon

Your Journey from Seattle to Shannon

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Shannon caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Air Canada, United, Virgin Atlantic, American Airlines, British Airways, Alaska Airlines. Our selection of flights from Seattle - Tacoma Intl. to Shannon caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Shannon Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Shannon that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$629 and roundtrip prices from S$1,364*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Shannon with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Shannon

Picture yourself stepping off the plane in Shannon and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Shannon Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Shannon.
 

Beyond the Flight – Exploring Shannon

With Expedia, your adventure extends beyond the flight. Explore Shannon at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Shannon with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Shannon with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Sea-Tac Airport to SNN?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from Seattle - Tacoma Intl. Airport (SEA) to SNN was S$1,364. Cheap tickets don’t last long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to SNN?
Every airline has different terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from SEA to Shannon Airport (SNN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for SEA to SNN flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from SEA to Shannon Airport?
SeaTac to Shannon is around 7,200 kilometres, so get ready to spend a while in the air. Make sure you pack all the essentials, from your hoodie to your headphones. Take a couple of snacks to nibble on throughout your flight too.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Shannon Airport (SNN)?
Right now, no airlines offer direct flights from Seattle - Tacoma Intl. Airport (SEA) to Shannon Airport. You’ll have to book a flight with at least one stop. To score the best price and connections, lock in your airfare ahead of time.
Are SEA to Shannon Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally find a bargain, with some super cheap airfares from Sea-Tac Airport to Shannon Airport arising a few weeks prior to the departure date. If you’d rather plan ahead, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline releases prices so far in advance.

Explore a world of travel with Expedia

*Available to Expedia members.