San Francisco to Singapore (SFO-SIN): nonstop upgrade & award space

United Airlines and Singapore Airlines fly nonstop between San Francisco (SFO) and Singapore (SIN), roughly 28 times a week. Long-haul cabins on a corridor this busy are large but never idle: premium cabin inventory reshuffles around every schedule change, and the best dates go first. 2LNR tracks award seats on Singapore Airlines across every SFO to SIN date, so you can see whether a seat exists before you move points.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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28
Nonstop flights a week
8,438 mi
Nonstop distance
Free
To get started

San Francisco to Singapore flight schedule

Scheduled nonstop departures for SFO to SIN, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from San Francisco (SFO) to Singapore (SIN)
Date Flight Airline Departs SFO Arrives SIN Duration Aircraft
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789
UA 29United Airlines10:4018:3516h 55m789
SQ 31Singapore Airlines11:4519:1016h 25m359
SQ 33Singapore Airlines22:2505:3016h 5m359
UA 1United Airlines22:4006:1516h 35m789

Showing all 28 scheduled SFO to SIN departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every SFO to SIN date on the interactive map

Award seats on SFO to SIN departures

2LNR tracks award seats on Singapore Airlines, date by date. Open the calendar for San Francisco to Singapore to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each SFO to SIN departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SFO to SIN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying San Francisco to Singapore nonstop

Carriers operating SFO to SIN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See SFO to SIN on the interactive map →

Frequently asked questions about SFO to SIN

How far is Singapore from San Francisco?
SFO to SIN covers about 8,438 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from SFO to SIN?
United Airlines and Singapore Airlines fly the route nonstop. 2LNR tracks award seats on Singapore Airlines.
How many flights a week are there from SFO to SIN?
About 28 nonstop flights a week run between San Francisco and Singapore in the current schedule, operated by United Airlines and Singapore Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SFO to SIN depart?
Scheduled SFO to SIN nonstops in the next 7 days with service leave between 10:40 and 22:40, local time at San Francisco. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on SFO to SIN?
Open the SFO to SIN route on the interactive map or the matrix to see award seats by date on Singapore Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss SFO to SIN upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free