Wayfli › Seattle (SEA) › To Singapore (SIN)

Seattle (SEA) to Singapore (SIN) flights

There are direct flights from Seattle Tacoma International Airport to Singapore Changi Airport, sold by one airline: Singapore Airlines. The distance is 12,979 km, about 16h 20m in the air. There are also 11 one-stop options, via airports such as Beijing, Shanghai and Los Angeles.

Live fares for SEA → SINSee all routes on the map
12,979 kmdistance
~16h 20mdirect flight time (estimate)
1direct airline
11one-stop options

Direct flights from Seattle to Singapore

RouteAirlines (incl. codeshares)DistanceTime (est.)
SEA → SINSingapore Airlines12,979 km~16h 20m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
PEK BeijingAmerican Airlines and China Southern Airlines then Air China and Singapore Airlines13,170 km~18h 45m
PVG ShanghaiChina Eastern then Spring Airlines and China Eastern12,994 km~18h 30m
LAX Los AngelesAmerican Airlines and Alaska Airlines then Singapore Airlines15,638 km~21h 45m
ICN SeoulKorean Air and Asiana Airlines then Air India and Korean Air13,001 km~18h 30m
HKG Hong KongCathay Pacific then Air India and Cathay Pacific13,008 km~18h 30m
NRT TokyoAll Nippon Airways and United Airlines then American Airlines and Air India13,014 km~18h 30m
TPE TaipeiEVA Air and STARLUX Airlines then EVA Air and China Airlines12,979 km~18h 30m
SFO San FranciscoAmerican Airlines and Alaska Airlines then United Airlines14,675 km~20h 35m
MNL ManilaPhilippine Airlines then Cebu Pacific and Philippine Airlines13,080 km~18h 35m
HND TokyoAll Nippon Airways then Japan Airlines and All Nippon Airways13,011 km~18h 30m
YVR VancouverAmerican Airlines and Air Canada then Air Canada13,017 km~18h 30m

More from Seattle and Singapore

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.