San Francisco (SFO) to Singapore (SIN)
Flight time
≈ 17h 41m
Bearing
301° NW
San Francisco (SFO) to Singapore (SIN) is 8,439 miles (13,582 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies SFO–SIN
US DOT T-100 · filed dataIn April 2026, United Airlines operated the most departures, one of 2 carriers flying nonstop SFO–SIN; the Boeing 787-9 was the most common aircraft at 66% of departures; flights ran 89% full.
Departures
176
April 2026
Seats
53,305
both directions
Passengers
47,513
both directions
Load factor
89.1%
passengers ÷ seats
Who flies SFO–SIN?
United Airlines operated the most nonstop SFO–SIN departures in April 2026 (116), one of 2 carriers on the route.
- UA
United Airlines
116 departures · 29,287 seats
Share of departures65.9%84.6%
Load
- SQ
Singapore Airlines
60 departures · 24,018 seats
Share of departures34.1%94.7%
Load
What plane flies SFO–SIN?
In April 2026, the Boeing 787-9 flew 66% of SFO–SIN departures — more than any other aircraft type.
- Boeing 787-9
116 departures · 84.6% load
65.9% - Airbus A350-900
60 departures · 94.7% load
34.1%
How has SFO–SIN traffic changed?
Nonstop SFO–SIN departures fell from 185 in May 2025 to 176 in April 2026.
Monthly nonstop SFO–SIN traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
185 departures · 33,359 passengers
80.2%
Load
June 2025
170 departures · 47,309 passengers
91.4%
Load
July 2025
186 departures · 45,520 passengers
79.1%
Load
August 2025
186 departures · 49,407 passengers
85.9%
Load
September 2025
177 departures · 41,970 passengers
76.9%
Load
October 2025
182 departures · 39,094 passengers
80.3%
Load
November 2025
120 departures · 23,358 passengers
75.7%
Load
December 2025
185 departures · 48,778 passengers
85.2%
Load
January 2026
181 departures · 48,079 passengers
87.9%
Load
February 2026
165 departures · 41,756 passengers
83.4%
Load
March 2026
186 departures · 53,309 passengers
93.8%
Load
April 2026
176 departures · 47,513 passengers
89.1%
Load
By direction
The DOT files each direction separately — they rarely match.
SFO → SIN
81.6% full
89 departures · 21,916 passengers
SIN → SFO
96.8% full
87 departures · 25,597 passengers
Nonstop SFO–SIN traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Singapore
SG
Singapore Changi Airport
Coordinates
1.35°N, 103.99°E
Hemisphere
N · E
Frequently asked
How far is San Francisco (SFO) from Singapore (SIN)?
SFO to SIN is 8,439 miles (13,582 km / 7,333 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from SFO to SIN?
A nonstop covers the 8,439-mile great-circle distance in roughly 17h 41m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies SFO–SIN?
In April 2026, the Boeing 787-9 flew the largest share of departures (65.9%), followed by the Airbus A350-900 (34.1%).
What mileage do I earn flying SFO–SIN?
Distance-based programs credit off the 8,439-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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