Seen operating · 8 dates
SQ 31
Singapore Airlines flight SQ 31 from San Francisco to Singapore, usually departing 09:40 local time with about 17h 25m in the air.
Fares and airlines on SFO–SIN →SFO
SIN
SCHEDULED · 8,439 mi
map · d3-geo · world-atlas · live position ADSB.lol (ODbL)
09:40
Departs SFO (local)
17h 25m
Scheduled flight time
13,582 km
8,439 miles
8
Operating dates seen
Flight SQ 31
What we can confirm
Only figures a dated source supplied. Times are local and change with the season — check with Singapore Airlines before you fly.
Route
SFO → SIN
San Francisco International Airport to Singapore Changi Airport
Usual departure
09:40 local
Most common time across 8 dates
Flight time
17h 25m
Scheduled, departure to arrival
Distance
13,582 km
Great-circle, 8,439 miles
Dates seen
2 Dec 2026 – 17 Mar 2027
8 operating dates
Where this comes from
- Nonstop fares travellers found for specific dates (Travelpayouts fare data)
- VRS standing-data community route database (CC0) lists the same airports.
- Live position, when the aircraft is airborne and in receiver coverage: ADSB.lol (ODbL 1.0).
Data refreshed 11 Sept 2026. We never estimate a time or route to fill a gap.
From the window seat
#SQ31 on the grid
Public posts tagged #SQ31 on YouTube, Bluesky and Mastodon.
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