Distance From Chialva S. H. Airport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Chialva S. H. Airport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 11266 miles or 18130 kilometers or 9783 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 San Marcos ( Argentina ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between San Marcos and Ulaanbaatar (Sergelen) takes around 25 hours 54 minutes.

Estimated flight time from Chialva S. H. Airport, San Marcos, Argentina to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 25 hours 54 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		18130 km
Statute Miles		11266 miles
Nautical Miles		9783 nm
Avg. Time of Flight		25 hours 54 minutes

Chialva S. H. Airport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

Location of Chialva S. H. Airport & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view San Marcos to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

Click to see flight route on Google Map between San Marcos, Argentina and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between San Marcos, Argentina and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between San Marcos (Argentina) and Ulaanbaatar (Sergelen) (Mongolia) is 11 Hours.
Ulaanbaatar (Sergelen) time is 11 Hours ahead of San Marcos.

Location	Local Time
San Marcos (Argentina)	2026-03-14, 18:22:55 -03
Ulaanbaatar (Sergelen) (Mongolia)	2026-03-15, 05:22:55 +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

Chialva S. H. Airport ( / ) San Marcos, Argentina

Destination

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