The cheapest times to fly from IAD to ULN are

  • January 8th to April 1st (except the week of January 29th)
  • August 20th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAD to ULN is early September. Prices can be as high as $3927 for Friday flights during early May, or as low as $785 for Tuesday flights around early September.


When to Fly to Ulaanbaatar

Flying from Washington, DC (IAD) to Ulan Bator (ULN) will usually cost between $790 to $2238 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $831. Due to high demand the most expensive time to fly is early May, with an average price of $1928. Planning your trip to low-cost times can easily save you $1097 on economy flights and even more on first-class flights. Generally, any price below $1195 can be considered a good price for a round-trip IAD to ULN flight.

See below for a graph of average weekly prices for the IAD to ULN route. All prices are for round-trip tickets in USD.

IAD to ULN Flight Prices

Compared to other flights, the IAD to ULN flight is slightly more expensive than the average and costs about as much as the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.12, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to Ulaanbaatar, and Sundays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $835 (37%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1111. Return trip prices are from the ULN to IAD flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from IAD to ULN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 34 minutes may not be realistic.


Flight Questions Answered

Still have questions about flying from IAD to ULN? We’ve got answers.

Which airlines fly this route?

You can find 26 major airlines flying this route most often: Aeroflot, Air Canada, Air China, Air France, Alaska, American, ANA, Asiana, Austrian, British Airways, Brussels Airlines, Cathay Pacific, Delta, Emirates, Ethiopian, Hainan, JAL, JetBlue, Kenya Airways, KLM, Korean Air, Lufthansa, MIAT, South African, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Chinggis Khaan International Airport to Washington Dulles International Airport?

The distance between the two airports is roughly 6433 miles or 10353 kilometers.

How long does it take to fly from IAD to ULN?

The real-world flight time for a nonstop IAD to ULN flight is about 12 hour 34 minutes.

How many flights go between Washington, DC and Ulan Bator?

It depends on the day of the week and the date, but a typical day might have around 46 available flights from IAD to ULN.


Airport Location Info


Departing Airport

Origination codeIAD
Origination airport nameWashington Dulles International Airport
CityWashington, DC
Countrythe United States

Return Airport

Destination codeULN
Destination airport nameChinggis Khaan International Airport
CityUlan Bator


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.