Distance From St. Theresa Point Airport to Ulaanbaatar Chinggis Khaan International Airport, YST - UBN Distance

The distance from St. Theresa Point Airport (YST) to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 5311 miles or 8547 kilometers or 4612 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.

---

How long does it take to travel from St. Theresa Point ( Canada ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between St. Theresa Point and Ulaanbaatar (Sergelen) takes around 12 hours 12 minutes.

Estimated flight time from St. Theresa Point Airport, St. Theresa Point, Canada to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 12 hours 12 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 • YST - UBN

Kilometers		8547 km
Statute Miles		5311 miles
Nautical Miles		4612 nm
Avg. Time of Flight		12 hours 12 minutes

St. Theresa Point Airport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - YST to UBN Flight Path

Location of St. Theresa Point Airport & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view St. Theresa Point to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

Click to see flight route on Google Map between St. Theresa Point, Canada and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between St. Theresa Point, Canada and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • YST - UBN

Time difference between St. Theresa Point (Canada) and Ulaanbaatar (Sergelen) (Mongolia) is 14 Hours.
Ulaanbaatar (Sergelen) time is 14 Hours ahead of St. Theresa Point.

Location	Local Time
St. Theresa Point (Canada)	2025-01-28, 12:22:54 CST
Ulaanbaatar (Sergelen) (Mongolia)	2025-01-29, 02:22:54 +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

St. Theresa Point Airport (YST / CYST) St. Theresa Point, Canada

Destination

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