Singapore to Atlanta
20h 20m The flight from Singapore Changi Airport (SIN) to Hartsfield Jackson Atlanta International Airport (ATL) covers 16,026 km (9,958 miles) and takes approximately 20h 20m gate to gate for a typical jet.
The route heads north on an initial great-circle bearing of 12°, passing near 69.6° N, 138.7° 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 | 29h 08m | 29h 34m |
| Narrowbody jet (A320, 737) | 780 km/h | 20h 33m | 20h 58m |
| Widebody jet (777, 787, A350) | 900 km/h | 17h 48m | 18h 14m |
| Private jet (Gulfstream) | 850 km/h | 18h 51m | 19h 16m |
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 | ATL | |
|---|---|---|
| Airport | Singapore Changi Airport | Hartsfield Jackson Atlanta International Airport |
| City | Singapore | Atlanta |
| Country | Singapore | United States |
| ICAO | WSSS | KATL |
| Coordinates | 1.3502, 103.994 | 33.6367, -84.4281 |
| Elevation | 22 ft | 1,026 ft |
Questions
How long is the flight from Singapore to Atlanta?
A non-stop flight from Singapore (SIN) to Atlanta (ATL) takes about 20h 20m. The great-circle distance is 16,026 km (9,958 miles, 8,653 nautical miles), flying north on an initial bearing of 12°.
How far is Singapore from Atlanta?
16,026 kilometres in a straight line over the earth's surface — 9,958 miles or 8,653 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 ATL?
This page calculates the direct-line time and distance; it does not track airline schedules. At 16,026 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 20h 20m 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.