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Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Amazing SEA to SIN Flight Deals

The cheapest flights to Changi found within the past 7 days were $522 round trip and $440 one way. Prices and availability subject to change. Additional terms may apply.

FAQs about flights from Seattle - Tacoma Intl. Airport (SEA) to Changi Airport (SIN)

Are there direct flights from Sea-Tac Airport to Singapore Airport?

The only thing separating you and your next extraordinary adventure is a single flight. Singapore Airlines is the only air carrier that operates direct services from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Singapore (SIN-Changi), so it's a wise idea to book ahead.

How long is the flight from Sea-Tac Airport to Singapore Airport?

The journey time between Seattle, WA (SEA-Seattle - Tacoma Intl.) and Singapore (SIN-Changi) is usually around 17 hours and 31 minutes — long enough to disturb anyone's body clock. Take note of the differences in time zones and make sure you get some sleep on this long-haul flight to prevent jet lag.

What is the flight distance from Sea-Tac Airport to Singapore Airport?

The flight distance from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Singapore (SIN-Changi) is 8,575 miles. Sleeping mask? Check. Compression socks? Double check. You're going to need all the long-haul survival tools for this lengthy flight.

What airlines fly from Sea-Tac Airport to Singapore Airport?

Locked in the dates for your vacation? Looking to fly directly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Singapore (SIN-Changi)? With Singapore Airlines offering 26 flights every month, you'll be in the air in no time.

Flying Tips & Tricks How do I find my flight number?
  • After you lock in your flight, your itinerary will be sent to your inbox. You'll find the flight number (a mix of numerals and letters) in this document.
How early can you check bags for a flight?
  • If you're jetting off on an international flight, you can generally drop your luggage three hours before the flight. For domestic services, it's more like two hours. Why not ease some of the stress of traveling and arrive at the airport with plenty of time to spare? This way, you don't have to worry about missing the bag drop completely. It usually closes 45 minutes before domestic flights and an hour before an international one.

SEA to SIN Frequently Asked Questions