Distance From Gregory Municipal Airport - Flynn Field to Ulaanbaatar Chinggis Khaan International Airport

The distance from Gregory Municipal Airport - Flynn Field () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 5958 miles or 9589 kilometers or 5174 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Gregory ( United States ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Gregory and Ulaanbaatar (Sergelen) takes around 13 hours 41 minutes.

Estimated flight time from Gregory Municipal Airport - Flynn Field, Gregory, United States to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 13 hours 41 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - UBN

Kilometers		9589 km
Statute Miles		5958 miles
Nautical Miles		5174 nm
Avg. Time of Flight		13 hours 41 minutes

Gregory Municipal Airport - Flynn Field to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

Location of Gregory Municipal Airport - Flynn Field & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view Gregory to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

Click to see flight route on Google Map between Gregory, United States and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Gregory, United States and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Gregory (United States) and Ulaanbaatar (Sergelen) (Mongolia) is 13 Hours.
Ulaanbaatar (Sergelen) time is 13 Hours ahead of Gregory.

Location	Local Time
Gregory (United States)	2026-09-22, 19:28:39 CDT
Ulaanbaatar (Sergelen) (Mongolia)	2026-09-23, 08:28:39 +08

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Gregory Municipal Airport - Flynn Field ( / 9D1) Gregory, United States

Destination

Ulaanbaatar Chinggis Khaan International Airport (UBN / ZMCK) Ulaanbaatar (Sergelen), Mongolia