FLIGHT TIME / CALCULATED ESTIMATE
Ulaanbaatar (Sergelen) ↗ San Francisco
UBN / Ulaanbaatar Chinggis Khaan International AirportSFO / San Francisco International Airport
MODELLED FLYING TIME11h 52mIllustrative estimate, not a scheduled flight
GREAT-CIRCLE DISTANCE9,354 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 San Francisco (SFO) is approximately 11 hours and 52 minutes for a modelled route length of 9,354 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: San Francisco International Airport. Both airport-code and coordinate records are drawn from the site’s imported aviation dataset, with initial curated data used until refreshed.