Singapore AirlinesSQ
live
Direct flights from San Francisco (SFO) to Singapore (SIN): 14 nonstop departures observed each week across 2 airlines. 80% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 21 minutes early. No cancellations were recorded across the 5 tracked flights. The nonstop covers 13,582 km, an estimated 17 hours 55 minutes in the air. Measured by Pro Flight Search from live flight boards at San Francisco and Singapore. Updated 10 September 2026 at 23:08 UTC.
SFO
San Francisco
smooth · +10
SIN
Singapore
smooth · +0
13,582 km · ~17h 55m est.
Runs reliable · 2 airlines · 14x weekly · nonstop
80% on time
of the last 5 operated SFO → SIN flights arrived within 15 minutes
Median arrival delay is −21 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−21 minacross the last 5 operated legs
Flight time~17h 55mestimated from route distance
Weekly departures14x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Singapore AirlinesUnited Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SFO: 50% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the San Francisco to Singapore route actually runs
Pro Flight Search records official board updates for nonstop SFO to SIN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — San Francisco (SFO) to Singapore (SIN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SFO-SIN
SFO to SIN questions
Is SFO–SIN running on time right now?
Smooth skies ahead. The departure side at SFO is the weaker end, route health score 93/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SFO–SIN?
Operators schedule morning departures around 11:00 and evening departures around 22:25 from SFO. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SIN delay card to confirm conditions when you'd arrive.
How long is the flight from SFO to SIN?
Great-circle distance is 13,582 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 989–1194 min gate-to-gate on this route.
How often does SFO–SIN fly?
2 carriers operate this route, around 28 flights a week between them. Compare carrier days and times in the airline list above.
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