Free tool

Flight time from San Francisco to Singapore

About 16 hours and 55 minutes non-stop, 13,580 km (8,438 miles), with your local arrival time and the time difference.

Estimated flight time16h 55mnon-stop
Distance13,580 km8,438 miles · 7,333 nm
Time difference+16hSingapore vs San Francisco
Local time now04:54 / 20:54San Francisco / Singapore

Estimate for a direct flight from San Francisco (SFO, San Francisco International) to Singapore (SIN, Changi). Change the departure time below to see your local arrival time.

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How long is the flight from San Francisco to Singapore?

A non-stop flight from San Francisco to Singapore takes about 16 hours and 55 minutes. The two cities are 13,580 km (8,438 miles) apart in a straight line, measured between San Francisco International (SFO) and Changi (SIN).

This is a long-haul route. If there is no direct flight on your dates, a connection through a hub usually adds 2–6 hours to the journey.

The estimate assumes an average speed of about 830 km/h plus around 35 minutes for taxiing, take-off and landing. Real schedules vary with the airline, aircraft, route and winds – heading west into the jet stream, flights often take a little longer than this. Check your booking for the exact time.

Time difference and arrival time

Singapore is 16 hours ahead of San Francisco right now. A flight leaving San Francisco at 10:00 local time lands at about 18:55 local time in Singapore the next day. With a 16h shift, expect some jet lag: as a rough guide the body adjusts by about an hour a day, and flying east (as on this trip) is usually harder than the other way.

Why arrival times look strange

Airline schedules always show local times: departure in the departure city’s time and arrival in the arrival city’s time. Fly east and you “lose” hours – a 7-hour flight from New York to London leaving at 19:00 lands at 07:00 the next morning. Fly west and you gain them, which is how you can land in Los Angeles almost at the same clock time you left Tokyo. This calculator handles the time zones and daylight saving time for you.

How the flight time estimate works

In estimate mode the calculator measures the great-circle distance between the two cities – the shortest route over the Earth’s surface – and assumes an average speed of about 830 km/h (515 mph), plus around 35 minutes for taxiing, take-off and landing. That gives a good guide for a non-stop flight. Real schedules vary with the airline, aircraft, winds and route: flights heading east with the jet stream are often quicker than the same trip heading west, so always check your booking for the exact time.

Frequently asked questions

How long is the flight from San Francisco to Singapore?

A direct flight from San Francisco to Singapore takes about 16 hours and 55 minutes. This is an estimate based on the distance; airline schedules can be shorter or longer depending on the route and winds.

How far is Singapore from San Francisco?

The straight-line (great-circle) distance between San Francisco and Singapore is about 13,580 km, or 8,438 miles.

What is the time difference between San Francisco and Singapore?

Singapore is 16 hours ahead of San Francisco at the moment.

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