New York to Sydney (Mascot)
20h 18m The flight from LaGuardia Airport (LGA) to Sydney Kingsford Smith International Airport (SYD) covers 16,007 km (9,946 miles) and takes approximately 20h 18m gate to gate for a typical jet.
The route heads west on an initial great-circle bearing of 266°, passing near 8.8° N, 147.6° W 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 06m | 29h 31m |
| Narrowbody jet (A320, 737) | 780 km/h | 20h 31m | 20h 56m |
| Widebody jet (777, 787, A350) | 900 km/h | 17h 47m | 18h 12m |
| Private jet (Gulfstream) | 850 km/h | 18h 50m | 19h 15m |
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
| LGA | SYD | |
|---|---|---|
| Airport | LaGuardia Airport | Sydney Kingsford Smith International Airport |
| City | New York | Sydney (Mascot) |
| Country | United States | Australia |
| ICAO | KLGA | YSSY |
| Coordinates | 40.7772, -73.8726 | -33.9461, 151.177 |
| Elevation | 21 ft | 21 ft |
Questions
How long is the flight from New York to Sydney (Mascot)?
A non-stop flight from New York (LGA) to Sydney (Mascot) (SYD) takes about 20h 18m. The great-circle distance is 16,007 km (9,946 miles, 8,643 nautical miles), flying west on an initial bearing of 266°.
How far is New York from Sydney (Mascot)?
16,007 kilometres in a straight line over the earth's surface — 9,946 miles or 8,643 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 LGA and SYD?
This page calculates the direct-line time and distance; it does not track airline schedules. At 16,007 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 18m 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.