HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ulaanbaatar

Cheap flights from Denver (DEN) to Ulaanbaatar (UBN)

DEN — UBN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Ulaanbaatar with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Best time to book a flight from Denver to Ulaanbaatar

Have a flexible travel schedule? Discover the best time to fly to Ulaanbaatar from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Ulaanbaatar

What is the cheapest time of day to fly from DEN to UBN?

Find hourly flight availability from Denver to Ulaanbaatar. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Denver to Ulaanbaatar in the afternoon. Doing so could potentially save you 4% on the flight price compared to flying at noon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Denver to Ulaanbaatar. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Denver to Ulaanbaatar that include hotel bookings?

    Yes. In addition to deals on Denver to Ulaanbaatar flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Ulaanbaatar?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Ulaanbaatar.

  • Can I find deals for business class flights from Denver to Ulaanbaatar?

    Yes. Cheapflights offers flight deals from Denver to Ulaanbaatar by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Ulaanbaatar?

    Currently, October is the cheapest month in which you can book a flight from Denver to Ulaanbaatar (average of $1,293). Flying from Denver to Ulaanbaatar in December is currently the most expensive (average of $1,697). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Ulaanbaatar

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Ulaanbaatar flights

Top 4 airlines flying from Denver to Ulaanbaatar

Discover the top 4 airlines that operate flights from Denver to Ulaanbaatar. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,090Average$1,888FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$1,251Average$1,688FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$1,274Average$1,797FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,544Average$1,845FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.