The flight distance from O. R. Tambo International Airport (JNB) in Johannesburg, South Africa to Ulaangom Airport (ULO) in Ulaangom Airport, Mongolia is 10,535 kilometers (6,546 miles / 5,688 nautical miles). The estimated flight time for this route is approximately 13h, flying northeast at a heading of 35°.

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 South Africa with Mongolia. It is an intercontinental flight between Africa and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 19:45 in Johannesburg, it's 00:45 in Ulaangom Airport. 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 5,558 feet between the two airports. Ulaangom Airport sits lower than O. R. Tambo International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Ulaangom Airport (ULO) to Johannesburg (JNB) follows a heading of 234° (southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the O. R. Tambo International Airport (JNB) and Ulaangom Airport (ULO) detail pages, or use our flight duration calculator to compare other routes.