The flight distance from London Heathrow Airport (LHR) in London, United Kingdom to Buyant-Ukhaa International Airport (ULN) in Ulan Bator, Mongolia is 6,991 kilometers (4,344 miles / 3,775 nautical miles). The estimated flight time for this route is approximately 9h, flying northeast at a heading of 46°.

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 United Kingdom 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 02:38 in London, it's 09:38 in Ulan Bator. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 4,281 feet between the two airports. Buyant-Ukhaa International Airport sits higher than London Heathrow Airport.

The return flight from Ulan Bator (ULN) to London (LHR) 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 London Heathrow Airport (LHR) and Buyant-Ukhaa International Airport (ULN) detail pages, or use our flight duration calculator to compare other routes.