S$530 Cheap Flights from Singapore to Seattle

View S$530 flight on Tue, 18 Nov, 2025Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to Seattle-Tacoma International Airport (SEA)

  • 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 Singapore to Seattle (SIN-SEA)

Prices were available within the past 7 days and start at S$530 for one-way flights and S$806 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Wed, 12 Nov - Thu, 27 Nov
SIN
Singapore
SEA
Seattle
S$806 Return, found 3 hours ago
S$806
Return
found 3 hours ago
Select Asiana Airlines flight, departing Wed, 12 Nov from Singapore to Seattle, returning Thu, 27 Nov, priced at S$806 found 3 hours ago
Air Canada
Tue, 27 Jan - Wed, 11 Feb
SIN
Singapore
SEA
Seattle
S$865 Return, found 2 hours ago
S$865
Return
found 2 hours ago
Select Air Canada flight, departing Tue, 27 Jan from Singapore to Seattle, returning Wed, 11 Feb, priced at S$865 found 2 hours ago
China Airlines
Sat, 13 Sep - Wed, 24 Sep
SIN
Singapore
SEA
Seattle
S$1,042 Return, found 1 day ago
S$1,042
Return
found 1 day ago
Select China Airlines flight, departing Sat, 13 Sep from Singapore to Seattle, returning Wed, 24 Sep, priced at S$1,042 found 1 day ago
STARLUX Airlines
Tue, 14 Oct - Sat, 15 Nov
SIN
Singapore
SEA
Seattle
S$1,064 Return, found 18 hours ago
S$1,064
Return
found 18 hours ago
Select STARLUX Airlines flight, departing Tue, 14 Oct from Singapore to Seattle, returning Sat, 15 Nov, priced at S$1,064 found 18 hours ago
United
Thu, 14 Aug - Thu, 14 Aug
SIN
Singapore
SEA
Seattle
S$1,065 Return, found 20 hours ago
S$1,065
Return
found 20 hours ago
Select United flight, departing Thu, 14 Aug from Singapore to Seattle, returning Thu, 14 Aug, priced at S$1,065 found 20 hours ago
Delta
Thu, 9 Apr - Fri, 24 Apr
SIN
Singapore
SEA
Seattle
S$1,088 Return, just found
S$1,088
Return
just found
Select Delta flight, departing Thu, 9 Apr from Singapore to Seattle, returning Fri, 24 Apr, priced at S$1,088 just found
Singapore Airlines
Thu, 9 Oct - Tue, 21 Oct
SIN
Singapore
SEA
Seattle
S$1,088 Return, found 1 day ago
S$1,088
Return
found 1 day ago
Select Singapore Airlines flight, departing Thu, 9 Oct from Singapore to Seattle, returning Tue, 21 Oct, priced at S$1,088 found 1 day ago
Korean Air
Thu, 18 Sep - Tue, 30 Sep
SIN
Singapore
SEA
Seattle
S$1,093 Return, just found
S$1,093
Return
just found
Select Korean Air flight, departing Thu, 18 Sep from Singapore to Seattle, returning Tue, 30 Sep, priced at S$1,093 just found
EVA Airways
Tue, 14 Oct - Sat, 15 Nov
SIN
Singapore
SEA
Seattle
S$1,114 Return, found 18 hours ago
S$1,114
Return
found 18 hours ago
Select EVA Airways flight, departing Tue, 14 Oct from Singapore to Seattle, returning Sat, 15 Nov, priced at S$1,114 found 18 hours ago
All Nippon Airways
Thu, 18 Sep - Tue, 30 Sep
SIN
Singapore
SEA
Seattle
S$1,212 Return, just found
S$1,212
Return
just found
Select All Nippon Airways flight, departing Thu, 18 Sep from Singapore to Seattle, returning Tue, 30 Sep, priced at S$1,212 just found

Find the cheapest month to fly from Singapore (SIN) to Seattle (SEA)

May is typically the cheapest month to fly

From S$765 - S$1,128 per traveller.

Graph displaying average flight prices per month

Singapore to Seattle route information
Origin airport
Changi
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Return price
S$806
Distance
12903 km
Average flight time
15 hours 45 mins

Perfect flights from Singapore to Seattle

Your Journey from Singapore to Seattle

Start your unforgettable journey with Expedia. Our broad selection of flights from Singapore to Seattle 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 Singapore Airlines, Air Canada, United, China Airlines, STARLUX Airlines, All Nippon Airways, EVA Airways, Delta, Korean Air, Xiamen Airlines, Asiana Airlines. Our selection of flights from Changi to Seattle - Tacoma Intl. 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 Singapore to Seattle Flights

Experience the joy of finding cheap flights from Changi to Seattle - Tacoma Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$530 and roundtrip prices from S$806*.
 

Pre-Flight Essentials

Ensure a smooth journey from Singapore to Seattle 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 Seattle

Picture yourself stepping off the plane in Seattle and immersing yourself in the unique atmosphere of Seattle. 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 Singapore to Seattle 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 Singapore to Seattle.
 

Beyond the Flight – Exploring Seattle

With Expedia, your adventure extends beyond the flight. Explore Seattle 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 Singapore to Seattle 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 Singapore to Seattle 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 Singapore Airport to Sea-Tac Airport?
Round-trip tickets between SIN and SEA start from S$806. This is based on fares available within the last 7 days on Expedia for flights departing within the next year --- book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SIN to Seattle - Tacoma Intl. Airport (SEA)?
The majority of flights can be cancelled online, but each air carrier has different terms and conditions. If you do need to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Changi Airport to Seattle - Tacoma Intl. Airport (SEA) 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 Singapore Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SIN to Sea-Tac Airport?
The distance is around 13,000 kilometres. Eye mask? Check. Toothbrush? Check. We recommend you pack all the travel comforts for this long-haul Singapore to SeaTac flight.
Which airlines fly direct from Changi Airport (SIN) to Sea-Tac Airport?
A popular option with many frequent flyers, Singapore Airlines (SQ) operates 13 monthly flights from Singapore Airport to SEA. Pick the one that fits in with your travel plans and book your seat today.
Are Singapore Airport to SEA flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so there are no guarantees. While last-minute flight deals between Singapore Airport and Sea-Tac Airport are possible, it also makes sense to keep an eye on prices well before you fly. In fact, some airlines publicize their prices up to 12 months prior to the departure date. Expedia is constantly updating the best bargains around, so keep checking and be ready to pounce when the price dips.

Explore a world of travel with Expedia

Seattle Airports

Seattle Paine Field Intl. Airport

Singapore to Seattle Paine Field Intl. Airport
S$1,593.70
*Available to Expedia members.