Flights from Bangkok(BKK) to Chinggis Khaan International Airport(ULN)

At the moment, you can catch a nonstop flight from Bangkok to Ulaanbaatar with the following airlines, including: Miat Mongolian Airlines China Eastern Airlines T'Way Air Air China Vietnam Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 5 hours 40 minutes to fly from Bangkok to Ulaanbaatar.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Bangkok to Ulaanbaatar is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 3 flight per week flying from Bangkok to Ulaanbaatar. You can check the weekly schedule for popular airlines on this route below: Miat Mongolian Airlines: S/-/T/-/-/F/- -- OM702 (15:54)

The cheapest months to fly from Bangkok to Ulaanbaatar is September, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Bangkok to Ulaanbaatar on December 20, 2025 with Miat Mongolian Airlines, with prices starting at VND 5,946,707.

You can land at any one of the following hubs in Ulaanbaatar, with Suvarnabhumi Airport to Chinggis Khaan International Airport (BKK-UBN) is by far the most common option on this route: Chinggis Khaan International Airport (UBN) Buyant-Ukhaa International Airport (ULN).

The time difference between Ulaanbaatar and Bangkok is 1h.

Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.