Reading SQ 31: its schedule, on-time record, turbulence and airports.Still counting: a new flight takes up to a minute the first time.
Singapore Airlines · leaves Thu, November 12
ON TIME
9:40 AM
leaves the gate · SFO · Terminal I
In 17 h 59 min
Planned · lands Fri, 6:57 PM Singapore time
Updated 3:41 PM San Francisco · 7:41 AM Singapore · live data
Singapore Airlines·Airbus A350-900LeavesThu, Nov 12tomorrowSQ 31 San Francisco to Singapore: Scheduled9:40AMSFOSan FranciscoTerminal IScheduled, Fri, Nov 137:05PMSINSingapore
Held down by slow airports49 min into Singapore; minutes waiting at security and passport control not in our data yet
The Pulse is the average of its parts: (90 + 51 + 100) ÷ 3 = 80Pulse80
On the day, follow itin FlightPassport
The Pulse is the average of its parts: (90 + 51 + 100) ÷ 3 = 80Pulse80
On the day, follow itin FlightPassportSan Francisco Singapore
Singapore Airlines · Thursday, November 12, 2026
Leaves 9:40 AMLands Fri, 6:57 PM
Gates and baggage belts come from the airports and can change on the day.
Gate to gate
- Thu, November 12 San Francisco time
- 9:40 AMplannedLeaves the gate, expectedon timeSFO · Terminal I
- 9:50 AMplanned 9:55 AMTakes off, expected5 min earlySan Francisco SFO
- Fri, November 13 Singapore time
- 6:57 PMplannedLands, expectedSingapore Changi
- 7:05 PMplannedAt the gate, expectedSIN
- AircraftAirbus A350-900
- Flight time17 h 2 min, planned
From the airports · gates and belts can change on the day
Before you fly
San FranciscoThursday morning
7:00 AM at the door · San Francisco, Terminal I
How busy is security before your flight?
EstimateBe at the door by 7:00 AM. You reach security at 7:15 AM, with time to spare; 7:45 AM is a little quieter.
Moderately busyagainst the day’s busiest quarter
You reach it at 7:15 AM; 7:45 AM is a little quieter. Once through, about 1 h 15 min until boarding opens.
Where can you wait before your flight?
UsuallyReading the lounges at SFO.
Reading the lounges at SFO.Still counting: a new flight takes up to a minute the first time.
Does your flight leave on time?
Not in our record yet.
Its departures aren’t in our data yet. The airline’s schedule has it leaving the gate at 9:40 AM, San Francisco time.
Which plane is your flight on?
Reading which planes this flight has flown.
Reading which planes this flight has flown.Still counting: a new flight takes up to a minute the first time.
In the air
Flight time 17 h 25 min
Which way does it fly?
UsuallyOver the North Pacific for about 13 h 45 min.
13 h 45 minover the North Pacific
Last land is the United States; the Philippines comes up about 3 h 15 min before landing.
10:55 AM the bumpy stretch · Over the North Pacific
Will it be bumpy?
ForecastMostly smooth. Three bumpy stretches. Bumps over the North Pacific, 1 h after take‑off; light bumps now and then elsewhere.
Mostly smooththree bumpy stretches, the first over the North Pacific after take‑off
About 1 h after take‑off; light bumps now and then elsewhere.
- Typical altitude
- Small bumps
- Bumpy
What will you see from the window?
EstimateEither side sees much the same.
Either side sees much the same.
Left window
PacificaUnited States, below the plane
North Pacific , open water below
NabunturanPhilippines, below the plane
PengerangMalaysia, below the plane
SFO timeSIN time
9:55 AM1:55 AM
4:45 PM8:45 AM
11:40 PM3:40 PM
2:50 AM6:50 PM
SIN
Right window
ParksideUnited States, below the plane
North Pacific , open water below
CompostelaPhilippines, below the plane
Bintan Island , the coast below
No sunrise or sunset on this flight, so neither side has the sun. San Francisco time in bold, as your phone keeps it in the air; Singapore time under it. Approximate: from the airline’s planned departure at 9:40 AM and a usual taxi to take-off; if it leaves late, these move with it.
After landing
SingaporeFriday evening
What’s the weather when you land?
ForecastAbout 73 °F at night, rain likely. Bring an umbrella.
88°FRainy, the week you land
High 88 °F · Low 73 °F. Bring an umbrella.
- Rain on 7 of 7 dayswhich days isn’t known yet
- About 9 h of sun a dayof 12 h 5 min of daylight
- Still dark when you landsun up 6:45 AM–6:50 PM
7:05 PM at the gate, Singapore time · Singapore Changi
How busy is passport control when you land?
EstimatePassport control around 7:20 PM, moderately busy for the day.
Moderately busyagainst the day’s busiest quarter
You reach it around 7:20 PM, 15 min after the gate.
How do you get to the city center?
EstimateA car or taxi is about 60 min quicker.
50minby car or taxi
public transport: about 110 min
Door to door from the airport, around your landing hour.
Before you book
San Francisco to SingaporeThe same day
Alternative flights
Reading the day’s flights from San Francisco to Singapore.
Reading the day’s flights from San Francisco to Singapore.Still counting: a new flight takes up to a minute the first time.
FlightPassportour partner app
Live tracking is in FlightPassport
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Code for this flight3UC WXRSample
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SFO・San Francisco
SIN・Singapore