Find a great deal and save up to 14% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington to Mongolia within the next two weeks, with the cheapest ticket starting at $1,030.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Mongolia. Flights to Mongolia from Washington in April are about $1,098 on average during April, but can be found for as low as $728.