Detour Flights

Cheap flights from San Francisco to Singapore Changi

San Francisco to Singapore Changi (SFO → SIN). We are tracking 25 fares on this route.

Cheapest tracked fare $372  ·  typical price $1,044  ·  you save about $672 (64%)

Cheapest fares we're tracking

AirlineDepartsStopsPrice
United2026-09-13Direct$372
United2026-09-14Direct$372
United2026-09-20Direct$372
United2026-09-21Direct$372
United2026-09-27Direct$372
United2026-09-28Direct$372
United2026-10-11Direct$372
United2026-10-12Direct$372
United2026-10-18Direct$372
United2026-10-19Direct$372
United2026-10-25Direct$372
United2026-10-26Direct$372
United2026-11-02Direct$372
United2026-11-08Direct$372
United2026-11-15Direct$372
United2026-11-23Direct$372
United Airlines2026-09-18Direct$392
United Airlines2026-10-06Direct$392
ANA2026-10-011 stop$397
United2026-10-04Direct$486

Could you save more?

The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.

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Related

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Common questions

How cheap can flights from San Francisco to Singapore Changi get?
The cheapest fare we have tracked on this route is $372, compared with a typical $1,044 for a trip of this distance.
Is it cheaper to fly to Singapore Changi from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make San Francisco to Singapore Changi cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.