FLIGHT TIME / CALCULATED ESTIMATE
Ulaanbaatar (Sergelen) ↗ Sydney (Mascot)
UBN / Ulaanbaatar Chinggis Khaan International AirportSYD / Sydney Kingsford Smith International Airport
MODELLED FLYING TIME12h 45mIllustrative estimate, not a scheduled flight
GREAT-CIRCLE DISTANCE10,091 kmGeographic straight-line distance
ROUTE CATEGORYInternationalOrigin and destination country records
How long is the flight?
The calculated airborne flight-time estimate between Ulaanbaatar (Sergelen) (UBN) and Sydney (Mascot) (SYD) is approximately 12 hours and 45 minutes for a modelled route length of 10,091 km.
This is not a confirmed nonstop service or published airline schedule. Airlines can use different paths, and connection time, taxiing, winds, weather, airspace restrictions and operational delays can change the actual journey.
Reference coordinates
Departure: Ulaanbaatar Chinggis Khaan International Airport. Arrival: Sydney Kingsford Smith International Airport. Both airport-code and coordinate records are drawn from the site’s imported aviation dataset, with initial curated data used until refreshed.