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Flights from Ulaanbaatar to Denver

Search cheap flights from Ulaanbaatar to Denver in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$984, and round-trip tickets start at US$1,232.

      • UBN 07:45
        18h 25m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Thu, Sep 3 | United Airlines
        DEN 11:40
        19h 15m
        1 stop
        UBN 20:55
        Denver - Ulaanbaatar | Mon, Sep 7 | United Airlines
        US$1,232 US$2,058
        40% off
        40% off
        US$2,058 US$1,232
      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Thu, Sep 3 | Turkish Airlines
        DEN 20:25
        20h 55m
        1 stop
        UBN 07:20
        Denver - Ulaanbaatar | Tue, Sep 8 | Turkish Airlines
        US$1,333 US$2,058
        35% off
        35% off
        US$2,058 US$1,333
      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Tue, Aug 18 | Turkish Airlines
        DEN 20:25
        20h 55m
        1 stop
        UBN 07:20
        Denver - Ulaanbaatar | Tue, Aug 25 | Turkish Airlines
        US$1,556 US$2,058
        24% off
        24% off
        US$2,058 US$1,556
      • UBN 07:45
        18h 25m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Wed, Aug 19 | United Airlines
        DEN 05:00
        25h 55m
        1 stop
        UBN 20:55
        Denver - Ulaanbaatar | Wed, Aug 26 | United Airlines
        US$1,557
        24% off
        US$2,058 US$1,557
      • UBN 09:55
        16h 15m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Fri, Jul 24 | United Airlines
        DEN 11:40
        40h 50m
        1 stop
        UBN 18:30
        Denver - Ulaanbaatar | Thu, Jul 30 | United Airlines
        US$1,615
        22% off
        US$2,058 US$1,615
      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Thu, Aug 20 | Turkish Airlines
        DEN 20:25
        20h 55m
        1 stop
        UBN 07:20
        Denver - Ulaanbaatar | Thu, Aug 27 | Turkish Airlines
        US$1,636
        21% off
        US$2,058 US$1,636
      • UBN 07:45
        18h 25m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Thu, Aug 20 | United Airlines
        DEN 11:40
        23h 55m
        1 stop
        UBN 01:35
        Denver - Ulaanbaatar | Thu, Aug 27 | United Airlines
        US$1,934
        6% off
        US$2,058 US$1,934
      • ULN 13:00
        17h 25m
        1 stop
        DEN 14:00
        Ulaanbaatar - Denver | Sat, Jul 18 | Normal Airline
        DEN 15:00
        6h
        Nonstop
        ULN 16:00
        Denver - Ulaanbaatar | Mon, Jul 20 | Normal Airline
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      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Sun, Sep 13 | Turkish Airlines
        US$984 US$1,847
        47% off
        47% off
        US$1,847 US$984
      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Sat, Sep 12 | Turkish Airlines
        US$1,000 US$1,847
        46% off
        46% off
        US$1,847 US$1,000
      • UBN 07:25
        25h
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Sun, Jul 26 | Turkish Airlines
        US$1,106 US$1,847
        40% off
        40% off
        US$1,847 US$1,106
      • UBN 07:25
        25h
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Thu, Aug 6 | Turkish Airlines
        US$1,134
        39% off
        US$1,847 US$1,134
      • UBN 07:25
        25h
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Tue, Aug 4 | Turkish Airlines
        US$1,190
        36% off
        US$1,847 US$1,190
      • UBN 09:55
        16h 15m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Wed, Aug 26 | United Airlines
        US$1,280
        31% off
        US$1,847 US$1,280
      • UBN 07:45
        18h 20m
        1 stop
        DEN 12:05
        Ulaanbaatar - Denver | Sun, Sep 13 | Miat Mongolian Airlines
        US$1,403
        24% off
        US$1,847 US$1,403
      • UBN 07:00
        19h 10m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Wed, Aug 5 | Miat Mongolian Airlines
        US$1,694
        8% off
        US$1,847 US$1,694
      • UBN 14:05
        36h 5m
        1 stop
        DEN 12:10
        Ulaanbaatar - Denver | Sun, Aug 2 | Miat Mongolian Airlines
        US$1,710
        7% off
        US$1,847 US$1,710
      • UBN 09:10
        23h 15m
        1 stop
        DEN 18:25
        Ulaanbaatar - Denver | Sat, Aug 1 | Turkish Airlines
        US$1,736
        6% off
        US$1,847 US$1,736
      • ULN 13:00
        17h 25m
        1 stop
        DEN 14:00
        Ulaanbaatar - Denver | Sat, Jul 18 | Normal Airline
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Cheapest airlines flights from Ulaanbaatar to Denver

You can choose from 2 airlines that fly from Ulaanbaatar to Denver, including Miat Mongolian Airlines, Turkish Airlines, Turkish Airlines has lowest fares on this route.
Miat Mongolian Airlines logo Miat Mongolian Airlines
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Ulaanbaatar to Denver according to previous 12 months data from Trip.com.

Ulaanbaatar to Denver Flight Details

The distance between Ulaanbaatar and Denver is about 9,780.75 km. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is October.

Cheapest one-way flight priceUS$984
Cheapest return ticket priceUS$1,232
Cheapest monthOctober
Peak season for travelJanuary
Flight distance9,780.75 km
Popular airlineMiat Mongolian Airlines
Flight statistics for the Ulaanbaatar–Denver route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Ulaanbaatar to Denver (ULN-DEN)?

    Based on Trip.com data, Turkish Airlines offers one-way fares as low as US$984 on Cheapest nonstop routes (e.g. UBN to DEN on Sun, Sep 13), while United Airlines offers Cheapest nonstop round-trips from US$1,232 departing on Thu, Sep 3 and returning on Mon, Sep 7.
  • At the moment, you can catch a nonstop flight from Ulaanbaatar to Denver with the following airlines, including: Miat Mongolian 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 Ulaanbaatar to Denver 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.
  • To find best deals on flights from Ulaanbaatar to Denver, 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 Sun, Sep 13, with one-way flights priced at just US$984.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Turkish 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 Denver travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Ulaanbaatar to Denver is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Ulaanbaatar to Denver on July 17, 2026 with United Airlines, with prices starting at US$1,263.
  • You can land at any one of the following hubs in Denver, with Chinggis Khaan International Airport to Denver International Airport (UBN-DEN) is by far the most common option on this route: Rocky Mountain Metropolitan Airport (BJC) Denver International Airport (DEN).
  • The time difference between Denver and Ulaanbaatar is 15h.
  • 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.

Trip.com Airline Insights on Flights from Ulaanbaatar to Denver

Which airline offers the cheapest direct flights from Ulaanbaatar to Denver?

Data is based on the average price of all nonstop flights from Ulaanbaatar to Denver on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Miat Mongolian Airlines provides the lowest-priced direct flights from Ulaanbaatar to Denver, with fares starting at US$778.

US$466
US$778
US$1,091
US$1,404
US$1,716
Miat Mongolian Airlines
US$778
Miat Mongolian Airlines
Asiana Airlines
US$1,008
Asiana Airlines
Turkish Airlines
US$1,095
Turkish Airlines
Korean Air
US$1,716
Korean Air

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.