Flight Route · International
Singapore → Seattle
SIN to SEA
Singapore Changi Airport to Seattle–Tacoma International Airport: 8,064 miles (12,978 km), about 16h 43m airborne, −15h time-zone shift on arrival.
Distance
8,064 mi
12,978 km
Flight time
16h 43m
block time, approx
Time-zone shift
−15h
Singapore → Los_Angeles
International?
Yes
Singapore → United States
SIN–SEA questions, answered
How long is the flight from Singapore to Seattle?
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A direct flight from Singapore Changi Airport (SIN) to Seattle–Tacoma International Airport (SEA) takes approximately 16h 43m. Actual block time varies with aircraft type, winds, and routing.
What is the distance from SIN to SEA?
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The great-circle distance from Singapore Changi Airport to Seattle–Tacoma International Airport is approximately 8064 miles (12978 kilometers). Actual flown distance varies slightly with the routing assigned by air traffic control.
What is the time difference between Singapore and Seattle?
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Seattle is −15h relative to Singapore. Asia/Singapore → America/Los_Angeles.
Which airlines fly from SIN to SEA?
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Carriers serving both endpoints include various international and regional carriers. Direct service depends on the specific carrier and season — confirm with your booking source for current schedules.
Is this an international flight?
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Yes. Singapore Changi Airport is in Singapore, and Seattle–Tacoma International Airport is in United States. Travelers should confirm passport, visa, and customs requirements before departure.
Can I track SIN–SEA flights on TripDesk365?
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Yes. TripDesk365 imports your booking confirmations from your inbox, identifies the route, and shows real-time status — gate changes, delays, and live aircraft position. Free for 14 days.
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