Cheap flights from Denver to Washington, D.C. from $146

In general, February is the cheapest month to fly from Denver to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $327. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $359.

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $542. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Washington, D.C. Dulles Intl Airport for around $739.

Flying to Washington, D.C. Dulles Intl Airport from Denver in the morning is the least expensive time of day to depart. momondo users have found prices as low as $574 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $815 on average. Flights to Washington, D.C. Dulles Intl Airport from Denver in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Denver Intl to Washington, D.C. Dulles Intl for the best Denver Intl - Washington, D.C. Dulles Intl flight prices

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $448 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Denver for as low as $357 on momondo.

There are 4 cabin classes available to choose from on Denver to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Denver to Washington, D.C. Dulles Intl Airport.

As of October 2026, prices for Denver to Washington, D.C. Dulles Intl Airport flights are approximately 1% more expensive when compared to flights at the same time last year.

United Airlines is the most popular carrier operating from Denver Intl to Washington, D.C. Dulles Intl

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Denver according to our data. United Airlines is the first choice among our users, with 83% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

The number of flights available between Denver and Washington, D.C. Dulles Intl Airport is 19 per day as of October 2026. The most frequent departure time is 8:00AM, with 46% of daily flights leaving at noon.

As of October 2026, 137 flights take off from Denver and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.