Sydney (Mascot) to Sofia
19h 35m The flight from Sydney Kingsford Smith International Airport (SYD) to Sofia Airport (SOF) covers 15,430 km (9,588 miles) and takes approximately 19h 35m gate to gate for a typical jet.
The route heads north-west on an initial great-circle bearing of 298°, passing near 9.8° N, 94.3° 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 | 28h 03m | 28h 28m |
| Narrowbody jet (A320, 737) | 780 km/h | 19h 47m | 20h 12m |
| Widebody jet (777, 787, A350) | 900 km/h | 17h 09m | 17h 34m |
| Private jet (Gulfstream) | 850 km/h | 18h 09m | 18h 34m |
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
| SYD | SOF | |
|---|---|---|
| Airport | Sydney Kingsford Smith International Airport | Sofia Airport |
| City | Sydney (Mascot) | Sofia |
| Country | Australia | Bulgaria |
| ICAO | YSSY | LBSF |
| Coordinates | -33.9461, 151.177 | 42.6964, 23.4177 |
| Elevation | 21 ft | 1,742 ft |
Questions
How long is the flight from Sydney (Mascot) to Sofia?
A non-stop flight from Sydney (Mascot) (SYD) to Sofia (SOF) takes about 19h 35m. The great-circle distance is 15,430 km (9,588 miles, 8,332 nautical miles), flying north-west on an initial bearing of 298°.
How far is Sydney (Mascot) from Sofia?
15,430 kilometres in a straight line over the earth's surface — 9,588 miles or 8,332 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 SYD and SOF?
This page calculates the direct-line time and distance; it does not track airline schedules. At 15,430 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 19h 35m 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.
Other routes from Sydney (Mascot)
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.