₹50,876 Cheap Flights from Seattle (SEA) to Singapore (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 ₹95,550. Cheap fares don’t wait forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.

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.

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.

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.

Operating 13 flights every month, Singapore Airlines (SQ) is a popular choice when flying directly from Sea-Tac Airport to Changi Airport (SIN).

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.