Cheap Flights from Washington (IAD) to Ulaanbaatar (ULN)

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Find available prices by choosing your travel dates.
Flights from Washington (IAD) to Ulaanbaatar (ULN)
Origin airport
Washington Dulles Intl.
Destination airport
Buyant-Ukhaa Intl.
Distance
6433 mi

Washington to Ulaanbaatar Flights

The cheapest times to fly from Washington to Ulaanbaatar

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Ulaanbaatar are during the month of . You can find some of the cheapest flights from Washington to Ulaanbaatar with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Ulaanbaatar

Sunday is one of the best days to book for cheap flights from Washington to Ulaanbaatar: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Ulaanbaatar

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Ulaanbaatar in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Ulaanbaatar flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Ulaanbaatar airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN) cost?
Discover the latest flight deals from IAD to ULN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to ULN?
The cheapest flights from IAD to ULN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to ULN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAD to ULN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN)?
There are no daily nonstop flights from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be soaring above the clouds in no time.
What day of the week has the most flights from IAD to ULN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN) route, travel before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN) last-minute?
Holding off until right before your break to book a flight from IAD to ULN often results in higher prices. While you might find some last-minute offers, they aren’t always guaranteed. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book an IAD to ULN flight and hotel package?
You can save money by booking an IAD to ULN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. Once you’ve chosen your ideal flights and accommodations, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Chinggis Khaan Intl. Airport (ULN)?
If you booked your IAD to ULN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.