RM1,643 Cheap Flights from Seattle (SEA) to Singapore (SIN)

View RM1,643 flight on Thu, 7 Aug 2025Opens in a new window

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

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Cheap Flights from Seattle to Singapore (SEA-SIN)

Prices were available within the past 7 days and start at RM1,643 for one-way flights and RM3,472 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,472 Return, found 1 day ago
RM3,472
Return
found 1 day ago
Select United flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,472 found 1 day ago
United
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,514 Return, found 1 day ago
RM3,514
Return
found 1 day ago
Select United flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,514 found 1 day ago
Korean Air
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,526 Return, found 1 day ago
RM3,526
Return
found 1 day ago
Select Korean Air flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,526 found 1 day ago
Korean Air
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,554 Return, found 1 day ago
RM3,554
Return
found 1 day ago
Select Korean Air flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,554 found 1 day ago
Philippine Airlines
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,752 Return, found 1 day ago
RM3,752
Return
found 1 day ago
Select Philippine Airlines flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,752 found 1 day ago
Philippine Airlines
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,880 Return, found 1 day ago
RM3,880
Return
found 1 day ago
Select Philippine Airlines flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,880 found 1 day ago
United
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,896 Return, found 1 day ago
RM3,896
Return
found 1 day ago
Select United flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,896 found 1 day ago
United
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,920 Return, found 1 day ago
RM3,920
Return
found 1 day ago
Select United flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,920 found 1 day ago
Korean Air
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM3,935 Return, found 1 day ago
RM3,935
Return
found 1 day ago
Select Korean Air flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM3,935 found 1 day ago
All Nippon Airways
Thu, 27 Nov - Wed, 3 Dec
SEA
Seattle
SIN
Singapore
RM4,006 Return, found 1 day ago
RM4,006
Return
found 1 day ago
Select All Nippon Airways flight, departing Thu, 27 Nov from Seattle to Singapore, returning Wed, 3 Dec, priced at RM4,006 found 1 day ago

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

March is typically the cheapest month to fly

From RM 3,034 - RM 4,482 per traveller.

Graph displaying average flight prices per month

Seattle to Singapore route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Changi
Return price
RM3,472
Distance
12903 km
Average flight time
15 hours 20 mins

Perfect flights from Seattle to Singapore

Your Journey from Seattle to Singapore

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

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Changi that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM1,643 and roundtrip prices from RM3,472*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Singapore 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 Singapore

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

Beyond the Flight – Exploring Singapore

With Expedia, your adventure extends beyond the flight. Explore Singapore 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 Singapore 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 Singapore 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 to Changi Airport (SIN)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey from SEA to Singapore Airport was RM3,472. Cheap fares don't wait forever, so make sure you book yours ASAP. 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-Tac Airport to Changi Airport (SIN)?
Most flights can be cancelled online, but every air carrier has different terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Changi Airport 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 SIN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Changi Airport?
The distance is around 13,000 kilometres, so pack your carry-on bag with all you need to make your journey comfortable. Not sure what to take on board your SeaTac to Singapore flight? A sleep mask, earplugs and a travel pillow are among the essentials.
Which airlines fly direct from SEA to Singapore Airport?
Operating 13 flights every month, Singapore Airlines (SQ) is a popular choice when flying directly from Sea-Tac Airport to Changi Airport (SIN).
Are Seattle - Tacoma Intl. Airport (SEA) to Changi Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices always go up and down, so not always. While last-minute deals between Sea-Tac Airport and Singapore Airport are possible, it's also a good idea to monitor prices well before you fly. In fact, some air carriers publicize their prices up to a year before the departure date. Expedia is continuously updating the best airfare bargains around, so check back often and be ready to secure your seat when the price is right.

Explore a world of travel with Expedia

*Available to Expedia members.