Cheap Flights from Xi'an (SIA) to Ulaanbaatar (ULN)

Frequently Asked Questions

• What are the cheapest flights from Xi'an to Ulaanbaatar (SIA-ULN)?

  Based on Trip.com data, China United Airlines offers one-way fares as low as JPY 14,750 on Cheapest nonstop routes (e.g. XIY to UBN on Sat, Dec 27), while China United Airlines offers Cheapest nonstop round-trips from JPY 27,500 departing on Thu, Dec 11 and returning on Sun, Dec 14.

• Which airlines offer flights from Xi'an to Ulaanbaatar?

  At the moment, several airlines serve connecting flights from Xi'an to Ulaanbaatar, including: China United Airlines Air China China Eastern Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Xi'an 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 Xi'an 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 can I find the best deals on flights from Xi'an to Ulaanbaatar?

  To find best deals on flights from Xi'an to Ulaanbaatar, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Dec 27, with one-way flights priced at just JPY 14,750.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is China United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Ulaanbaatar travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Xi'an (SIA) to Ulaanbaatar (ULN) the cheapest?

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

• Which upcoming date is cheapest to fly from Xi'an to Ulaanbaatar on?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Xi'an to Ulaanbaatar on December 15, 2025 with China United Airlines, with prices starting at JPY 14,616.

• Which airports can I fly to for Ulaanbaatar from Xi'an?

  You can land at any one of the following hubs in Ulaanbaatar, with Xi'an Xianyang International Airport to Chinggis Khaan International Airport (XIY-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 Xi'an and Ulaanbaatar?

  The time difference between Ulaanbaatar and Xi'an is 0h.

• How do I change or cancel my ticket from Xi'an to Ulaanbaatar?

  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.