Singapore to San Diego
18h 09m The flight from Singapore Changi Airport (SIN) to San Diego International Airport (SAN) covers 14,269 km (8,867 miles) and takes approximately 18h 09m gate to gate for a typical jet.
The route heads north-east on an initial great-circle bearing of 45°, passing near 40.3° N, 160.5° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 25h 57m | 26h 22m |
| Narrowbody jet (A320, 737) | 780 km/h | 18h 18m | 18h 43m |
| Widebody jet (777, 787, A350) | 900 km/h | 15h 51m | 16h 16m |
| Private jet (Gulfstream) | 850 km/h | 16h 47m | 17h 12m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| SIN | SAN | |
|---|---|---|
| Airport | Singapore Changi Airport | San Diego International Airport |
| City | Singapore | San Diego |
| Country | Singapore | United States |
| ICAO | WSSS | KSAN |
| Coordinates | 1.3502, 103.994 | 32.7336, -117.19 |
| Elevation | 22 ft | 17 ft |
Questions
How long is the flight from Singapore to San Diego?
A non-stop flight from Singapore (SIN) to San Diego (SAN) takes about 18h 09m. The great-circle distance is 14,269 km (8,867 miles, 7,705 nautical miles), flying north-east on an initial bearing of 45°.
How far is Singapore from San Diego?
14,269 kilometres in a straight line over the earth's surface — 8,867 miles or 7,705 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between SIN and SAN?
This page calculates the direct-line time and distance; it does not track airline schedules. At 14,269 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.
What should I expect on a 18h 09m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.