Route brief · SFO → SIN
San Francisco → Singapore
$405
round-trip · too little price history on this route to compare
Feb 7 '27 – Feb 23 '27 · 16 nights
ANA1 stop
Cached fare — the booking search re-prices live before you pay.
Destination briefSINSingaporeA city that treats an airport as a national monument — and prices its stopover fares to tempt you.Best windowFeb–AprAirportsChangi (SIN)All routes into SingaporeWhen this route gets cheap.
Best time to be in Singapore: Feb–Apr. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes one stop and takes about 19 hours outbound, on a 16-night trip — ticketed under ANA, which on a connecting fare need not operate every leg. At $405 for 13,582 km each way, that works out to about $15 per 1,000 km flown. That is well under the $40 that ultra-long-haul fares on this board typically run. Of the 23 departure cities we track at a similar distance from Singapore, this is the cheapest right now — 22% under the next one, London. It is also the 2nd cheapest of the 32 routes of similar length we watch out of San Francisco. We have 3 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage.
The one day we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 17% lower than when tracking began on Aug 8 — $933 then versus $778 now, across 4 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $692, on Sep 20.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Route facts
- Airports
- SFO · Oakland (OAK) · San José (SJC) ↔ Changi (SIN)
- Flight time
- ~19 hours outbound
- Distance
- ~13,582 km each way
- Airlines on the board
- ANA
- Itineraries
- Connections on current fares
- Best months to visit
- Feb–Apr
SF → SIN, answered.
How far in advance should I book SF → Singapore?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from San Francisco to Singapore?
The current cheapest fares involve a connection, ticketed under ANA. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Singapore?
Lock the flight first — then compare stays for Feb 7 '27 – Feb 23 '27 · 16 nights.
Browse hotels ↗
Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next SF → SIN drop reaches you as soon as we find it.
Follow SF → SIN