Flight time from San Francisco to Singapore
A nonstop flight from San Francisco (SFO) to Singapore (SIN) takes about 17 h 25 min. Flying back from Singapore to San Francisco takes about 15 h 25 min. The two airports are 8,439 miles (13,582 km) apart.
| Route | Typical nonstop time | Leave 9:00 AM, land (local time) |
|---|---|---|
| SFO → SIN | 17h 25m | San Francisco → 6:25 PM the next day |
| SIN → SFO | 15h 25m | Singapore → 8:25 AM |
Example arrival times are for a departure on November 18, 2026. Times are estimates of gate-to-gate block time, from the great-circle distance, typical jet cruising speeds, average upper-level winds and about 45 minutes for taxi, take-off, climb and landing. They are not airline schedules, and we don't track which airlines fly this route nonstop. Real flights vary by aircraft, routing, season and the day's wind; check your airline for the exact time.
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Time difference
Singapore is 15 hours ahead of San Francisco right now. Allow for it when you plan: the clock at your destination may show a very different time from the hours you spent in the air. See the time now in San Francisco and Singapore, or compare them in the time zone converter.
The Singapore to San Francisco flight is usually quicker than San Francisco to Singapore. High-altitude winds, led by the jet stream, mostly blow from west to east, so planes heading east ride a tailwind and planes heading west fight a headwind. On busy routes the difference shows up in airline timetables every day.
At about 17 h 25 min nonstop, this is an ultra-long-haul distance that only long-range jets can cover without a stop, and many travellers connect instead, adding hours to the trip.
Questions people ask
How long is the flight from San Francisco to Singapore?
A nonstop flight from San Francisco (SFO) to Singapore (SIN) takes about 17 h 25 min, gate to gate. The return flight takes about 15 h 25 min.
How far is Singapore from San Francisco?
8,439 miles (13,582 km) along the great-circle route, the shortest path over the Earth between SFO and SIN airports.
What is the time difference between San Francisco and Singapore?
Singapore is 15 hours ahead of San Francisco right now. The difference can change by an hour during the year when one city changes its clocks for daylight saving time and the other does not.
If I leave San Francisco at 9 a.m., when do I arrive in Singapore?
Leaving San Francisco at 9:00 AM on November 18, 2026, you would land in Singapore at about 6:25 PM the next day local time.
More flight times
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Last updated October 21, 2026. Airport locations: OurAirports via airportsdata; time zones: IANA time zone database 2026.