Cheap Flights from Seoul to Ulaanbaatar

FAQ

• Which airlines offer direct flights from Seoul to Ulaanbaatar?

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

• How long is the flight from Seoul (SEL) to Ulaanbaatar (ULN)?

  It takes about 3 hours 40 minutes to fly from Seoul (SEL) to Ulaanbaatar (ULN).

• When is the best time to book flights from Seoul 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 Seoul 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.

• How many flights are there per week from Seoul to Ulaanbaatar?

  Based on Trip.com data in the past 4 weeks, there is 25 flight per week flying from Seoul to Ulaanbaatar. You can check the weekly schedule for popular airlines on this route below: Miat Mongolian Airlines: S/M/T/W/T/F/S -- OM302 (13:49) Korean Air: S/M/T/W/T/F/S -- KE5867 (13:49) Korean Air: -/M/T/W/T/F/S -- KE5649 (23:58)

• When are flight tickets from Seoul (SEL) to Ulaanbaatar (ULN) the cheapest?

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

• Which upcoming date is cheapest to fly from Seoul to Ulaanbaatar on?

  After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Seoul to Ulaanbaatar on November 25, 2025 with Jeju Air, with prices starting at £52.

• Which airports can I fly to for Ulaanbaatar from Seoul?

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

• Is there any time difference between Seoul and Ulaanbaatar?

  The time difference between Ulaanbaatar and Seoul is 1h.

• How do I change or cancel my ticket from Seoul to Ulaanbaatar?

  Tickets can only be changed or cancelled 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.