--- title: "San Francisco to Singapore flights: who flies SFO-SIN" description: "Singapore Airlines and United Airlines fly nonstop from SFO to SIN, about 28 flights a week, covering 8,438 miles. See award seats by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/sfo-sin" url: "https://2lnr.com/routes/sfo-sin.md" date_modified: "2026-10-18T05:10:47Z" --- # San Francisco to Singapore (SFO-SIN): nonstop flights and award space Singapore Airlines and United Airlines fly nonstop between San Francisco (SFO) and Singapore (SIN), roughly 28 times a week. The timetable below shows the nonstop scheduled at 16h 25m to 17h 35m for the 8,438 miles. 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 October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See SFO to SIN on the interactive map [Get started free](https://2lnr.com/login) 28 Flights a week, 4-week average 16h 25m to 17h 35m Scheduled flight time 8,438 mi Nonstop distance Free To get started ## San Francisco to Singapore flight schedule Scheduled nonstop departures for SFO to SIN starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from San Francisco (SFO) to Singapore (SIN) | Date | Flight | Airline | Departs SFO | Arrives SIN | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | UA 29 | United Airlines | 10:40 | 18:35 | 16h 55m | [Boeing 787-9 Dreamliner](https://2lnr.com/seatmaps/ua/787-9.md) | | Fri, Oct 23 | SQ 31 | Singapore Airlines | 11:45 | 19:10 | 16h 25m | [Airbus A350-900](https://2lnr.com/seatmaps/sq/a350-900.md) | | Fri, Oct 23 | SQ 33 | Singapore Airlines | 22:00 | 05:30 | 16h 30m | Airbus A350-900 | | Fri, Oct 23 | UA 1 | United Airlines | 22:40 | 06:15 | 16h 35m | Boeing 787-9 Dreamliner | | Sat, Oct 24 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Sat, Oct 24 | SQ 31 | Singapore Airlines | 11:45 | 19:10 | 16h 25m | Airbus A350-900 | | Sat, Oct 24 | SQ 33 | Singapore Airlines | 22:00 | 05:30 | 16h 30m | Airbus A350-900 | | Sat, Oct 24 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | | Sun, Oct 25 | SQ 31 | Singapore Airlines | 10:40 | 19:05 | 17h 25m | Airbus A350-900 | | Sun, Oct 25 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Sun, Oct 25 | SQ 33 | Singapore Airlines | 21:15 | 05:45 | 17h 30m | Airbus A350-900 | | Sun, Oct 25 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | | Mon, Oct 26 | SQ 31 | Singapore Airlines | 10:40 | 19:05 | 17h 25m | Airbus A350-900 | | Mon, Oct 26 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Mon, Oct 26 | SQ 33 | Singapore Airlines | 21:15 | 05:45 | 17h 30m | Airbus A350-900 | | Mon, Oct 26 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | | Tue, Oct 27 | SQ 31 | Singapore Airlines | 10:40 | 19:05 | 17h 25m | Airbus A350-900 | | Tue, Oct 27 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Tue, Oct 27 | SQ 33 | Singapore Airlines | 21:15 | 05:45 | 17h 30m | Airbus A350-900 | | Tue, Oct 27 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | | Wed, Oct 28 | SQ 31 | Singapore Airlines | 10:40 | 19:05 | 17h 25m | Airbus A350-900 | | Wed, Oct 28 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Wed, Oct 28 | SQ 33 | Singapore Airlines | 21:15 | 05:45 | 17h 30m | Airbus A350-900 | | Wed, Oct 28 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | | Thu, Oct 29 | SQ 31 | Singapore Airlines | 10:40 | 19:05 | 17h 25m | Airbus A350-900 | | Thu, Oct 29 | UA 29 | United Airlines | 11:40 | 20:15 | 17h 35m | Boeing 787-9 Dreamliner | | Thu, Oct 29 | SQ 33 | Singapore Airlines | 21:15 | 05:45 | 17h 30m | Airbus A350-900 | | Thu, Oct 29 | UA 1 | United Airlines | 22:40 | 07:00 | 17h 20m | Boeing 787-9 Dreamliner | Showing all 28 scheduled SFO to SIN departures across 7 days with service, starting October 23, 2026. 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every SFO to SIN date on the interactive map ## Aircraft on the San Francisco to Singapore nonstop In the schedule table on this page, United Airlines flies the [Boeing 787-9 Dreamliner](https://2lnr.com/seatmaps/ua/787-9.md), and Singapore Airlines flies the [Airbus A350-900](https://2lnr.com/seatmaps/sq/a350-900.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## 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. Singapore Airlines award space was open on 5 of the 14 San Francisco to Singapore departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Award seats by date on the SFO to SIN departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're 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. Where 2LNR tracks the carrier, its departures show award space by date. - [Singapore Airlines (SQ) route map](https://2lnr.com/routes/airlines/sq.md)\ [The aircraft SQ flies](https://2lnr.com/seatmaps/sq.md) - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See SFO to SIN on the interactive map → ## Frequently asked questions about SFO to SIN **How long is the flight from San Francisco (SFO) to Singapore (SIN)?** Scheduled flight times from San Francisco (SFO) to Singapore (SIN) run from 16h 25m to 17h 35m across the departures in the schedule table on this page. The nonstop covers about 8,438 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SFO to SIN?** Singapore Airlines and United Airlines fly SFO to SIN 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 (SFO) and Singapore (SIN) in the current schedule, operated by Singapore Airlines and United 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. **Which flights operate SFO to SIN nonstop?** In the schedule table on this page, SFO to SIN nonstops fly as SQ 31 and SQ 33 on Singapore Airlines, and UA 1 and UA 29 on United Airlines. The table lists each departure by date with its times and aircraft. **How do I check 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. Flying the other way? See [SIN to SFO nonstop flights and award space](https://2lnr.com/routes/sin-sfo.md). Award seats rather than schedules? See [Singapore Airlines award availability](https://2lnr.com/awards/sq.md). Looking beyond this route? See [every route from San Francisco (SFO)](https://2lnr.com/routes/sfo.md), or [every route from Singapore (SIN)](https://2lnr.com/routes/sin.md). - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## See SFO to SIN award space by date See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)