The flight distance from Presidente Juscelino Kubistschek International Airport (BSB) in Brasilia, Brazil to Buyant-Ukhaa International Airport (ULN) in Ulan Bator, Mongolia is 15,773 kilometers (9,801 miles / 8,516 nautical miles). The estimated flight time for this route is approximately 20h, flying north northeast at a heading of 28°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

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

Time zone information: When it's 21:22 in Brasilia, it's 08:22 in Ulan Bator. With a 11-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Ulan Bator (ULN) to Brasilia (BSB) follows a heading of 318° (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 Presidente Juscelino Kubistschek International Airport (BSB) and Buyant-Ukhaa International Airport (ULN) detail pages, or use our flight duration calculator to compare other routes.