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Flights from Chicago to Ulaanbaatar

Find cheap airlines flights from Chicago to Ulaanbaatar

Choose from 6 carriers that fly from Chicago to Ulaanbaatar, including United Airlines, Korean Air, and Delta Air Lines. Enjoy the cheapest tickets on this route with Korean Air.
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Find flight deals from Chicago to Ulaanbaatar for the next 3 months. Book one way flights from $578 or round trip flights from $1,119.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Chicago to Ulaanbaatar

The distance between Chicago and Ulaanbaatar is about 9,938.84 km. The most popular month to Ulaanbaatar is July. The off-season for travel is November.

Cheapest one-way flight price$578
Cheapest round-trip ticket price$1,119
Off-season for travelNovember
Peak season for travelJuly
Flight distance9,938.84 km
Popular airlineUnited Airlines

When is the cheapest time to fly from Chicago to Ulaanbaatar?

The cheapest time for Chicago to Ulaanbaatar flights: Nov 9 to Nov 16 — one way flight prices from $486.

Cheapest flights
From price
Search
  • 916
  • 1623
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • Which airlines offer direct flights from Chicago to Ulaanbaatar?

    At the moment, you can catch a nonstop flight from Chicago to Ulaanbaatar with the following airlines, including: Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago 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.
  • The cheapest months to fly from Chicago to Ulaanbaatar is November, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Chicago to Ulaanbaatar on November 25, 2025 with Korean Air, with prices starting at $576.
  • You can land at any one of the following hubs in Ulaanbaatar, with O'Hare International Airport to Chinggis Khaan International Airport (ORD-UBN) is by far the most common option on this route: Buyant-Ukhaa International Airport (ULN) Chinggis Khaan International Airport (UBN).
  • The time difference between Ulaanbaatar and Chicago is 14h.
  • 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.

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