Distance From Harvest Lake Seaplane Base to Ulaanbaatar Chinggis Khaan International Airport

The distance from Harvest Lake Seaplane Base () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 6929 miles or 11151 kilometers or 6017 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 Riceboro ( United States ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Riceboro and Ulaanbaatar (Sergelen) takes around 15 hours 55 minutes.

Estimated flight time from Harvest Lake Seaplane Base, Riceboro, United States to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 15 hours 55 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		11151 km
Statute Miles		6929 miles
Nautical Miles		6017 nm
Avg. Time of Flight		15 hours 55 minutes

Harvest Lake Seaplane Base to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

Location of Harvest Lake Seaplane Base & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view Riceboro to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - UBN

Time difference between Riceboro (United States) and Ulaanbaatar (Sergelen) (Mongolia) is 12 Hours.
Ulaanbaatar (Sergelen) time is 12 Hours ahead of Riceboro.

Location	Local Time
Riceboro (United States)	2026-03-21, 18:28:55 EDT
Ulaanbaatar (Sergelen) (Mongolia)	2026-03-22, 06:28:55 +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

Harvest Lake Seaplane Base ( / 12GE) Riceboro, United States

Destination

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