¥52,510 Cheap Flights from Seattle (SEA) to Singapore (SIN)

Popular airlines from Seattle to Singapore (SIN-Changi)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards

Cheap Flights from Seattle to Singapore (SEA-SIN)

Prices were available within the past 7 days and start at ¥52,510 for one-way flights and ¥109,600 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
United
Delta
Korean Air
Air Canada
All Nippon Airways
Cathay Pacific
Japan Airlines
Turkish Airlines
Qatar Airways

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

September is typically the cheapest month to fly

From ¥103,900 - ¥152,979 per traveler.

Frequently asked questions

How much is a flight from Sea-Tac Airport to SIN?
Round-trip flights between Sea-Tac Airport and Singapore Airport start from ¥109,600. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book now 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 SEA to Changi Airport (SIN)?
We get that circumstances change unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Sea-Tac Airport to Changi Airport (SIN) 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-Tac Airport to Singapore Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Changi Airport (SIN)?
The flight time from SEA to Singapore Airport is approximately 19 hours and 57 minutes. It's is no quick joyride, so be sure to fill your hand luggage with whatever you need to be comfortable.
How far is the flight from SEA to Changi Airport (SIN)?
The distance is around 13,000 kilometers. Earplugs? Check. Warm clothes? Double check. You'll need to pack all the essentials for this long-haul SeaTac to Singapore flight.
Which airlines fly direct from Sea-Tac Airport to Changi Airport (SIN)?
Singapore Airlines (SQ) will get you from Sea-Tac Airport to SIN safely and reliably. Take your pick of 13 direct flights each month along this route.
Are Sea-Tac Airport to Changi Airport flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Sea-Tac Airport to Singapore Airport can be hit-or-miss. It is possible to score a bargain, but you could also miss out entirely! If you'd prefer to play it safe and start your travel planning early, Expedia compares flight deals up to a year in advance. Just remember that not all airlines publish their prices so far in advance. Our top tip? Check back often as prices are updated regularly.

Travel information

0
Origin airport
Seattle - Tacoma Intl.
Destination airport
Changi
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, British Airways, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, Lufthansa, Philippine Airlines, Qatar Airways, STARLUX Airlines, Singapore Airlines, Turkish Airlines, United
Roundtrip price
¥109,600
Distance
12903 km

Book with confidence

*Available to Expedia members.