The flight distance from General Edward Lawrence Logan International Airport (BOS) in Boston, United States to Ulgii Mongolei Airport (ULG) in Ulgii Mongolei Airport, Mongolia is 9,688 kilometers (6,020 miles / 5,231 nautical miles). The estimated flight time for this route is approximately 12h, flying north northeast at a heading of 12°.

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

Time zone information: When it's 11:02 in Boston, it's 23:02 in Ulgii Mongolei Airport. With a 12-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 5,713 feet between the two airports. Ulgii Mongolei Airport sits higher than General Edward Lawrence Logan International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Ulgii Mongolei Airport (ULG) to Boston (BOS) follows a heading of 346° (north 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 General Edward Lawrence Logan International Airport (BOS) and Ulgii Mongolei Airport (ULG) detail pages, or use our flight duration calculator to compare other routes.