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San Francisco to Singapore Flight Time

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How Long Is the Journey from San Francisco to Singapore?

A nonstop flight from San Francisco to Singapore usually takes approximately 16 hours 5 minutes to 17 hours 40 minutes. One-stop journeys commonly last between 19 hours 45 minutes and 25 hours, depending on the transfer airport and layover duration.​​​​​​​

Average Time in the Air Between San Francisco and Singapore

Travelers can use around 16 hours 30 minutes to 17 hours as a practical estimate for a direct journey. Flight time may change because of wind patterns, weather, air traffic and the route followed by the aircraft.

This westbound journey crosses the International Date Line. Depending on the departure time, the scheduled arrival may be one or two calendar days after departure.​​​​​​​

SFO–SIN Flight Time at a Glance

Origin AirportDestination AirportRoute CodeApproximate Flight Duration
San Francisco International AirportSingapore Changi AirportSFO–SINApproximately 16 hrs 5 mins–17 hrs 40 mins nonstop

Carriers Flying Nonstop from San Francisco to Singapore

Singapore Airlines

Singapore Airlines

United Airlines

United Airlines

Understanding the Time Difference Between San Francisco and Singapore

Singapore is 15 hours ahead of San Francisco while California observes Pacific Daylight Time. The difference increases to 16 hours when San Francisco follows Pacific Standard Time.

Singapore remains on Singapore Standard Time throughout the year and does not change its clocks for daylight saving time.

When it is 9:00 AM in San Francisco during Pacific Daylight Time, it is midnight in Singapore at the beginning of the following day.


Explore More Flight Times & Routes

Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below.

Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the San Francisco Flight Times.

Frequently Asked Questions About San Francisco to Singapore Flight Times

How long does a nonstop flight from San Francisco to Singapore take?

Which airport do flights use in Singapore?

Where can flights connect on the way to Singapore?

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Which airlines provide nonstop flights between San Francisco and Singapore?

Why does the arrival date appear much later than the departure date?

How far is Singapore from San Francisco by air?

Verified by Our Travel Operations Expert

Jaipal Singh

He is Director of Operations at Moresand Limited, running Crystaltravel.co.uk (38 years in business, 38,000+ Trustpilot reviews) and Mundotrip.com. 20+ years in travel, from retail and B2B distribution to operations. His team processes thousands of bookings annually across flights, hotels, car rentals, cruises, and packages. Information on this site comes from actual booking data and supplier records.

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