The flight distance from Sofia Airport (SOF) in Sofia, Bulgaria to Buyant-Ukhaa International Airport (ULN) in Ulan Bator, Mongolia is 6,223 kilometers (3,867 miles / 3,360 nautical miles). The estimated flight time for this route is approximately 8h, flying northeast at a heading of 54°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting Bulgaria with Mongolia. It is an intercontinental flight between Europe and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 05:53 in Sofia, it's 10:53 in Ulan Bator. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 2,622 feet between the two airports. Buyant-Ukhaa International Airport sits higher than Sofia Airport.

The return flight from Ulan Bator (ULN) to Sofia (SOF) follows a heading of 298° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sofia Airport (SOF) and Buyant-Ukhaa International Airport (ULN) detail pages, or use our flight duration calculator to compare other routes.