Cheap flights from the United States to Washington, D.C. from $79

The month of August is, on average, the cheapest month to fly to Washington, D.C. from United States, with most prices found around $276. If you’re not able to fly to Washington, D.C. in August, then September is your next best option. Flight prices from United States to Washington, D.C. during September average around $285.

On average, the least expensive day to fly to Washington, D.C. from United States is on a Friday. momondo users have found tickets for Friday departures for as low as $347. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from United States to Washington, D.C. for around $419.

In the morning is the cheapest time of day to fly from United States to Washington, D.C. when you can find flight prices for as low as $365. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $439. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Atlanta Hartsfield-Jackson to Washington, D.C. Dulles Intl for the best United States - Washington, D.C. flight prices

No. A direct flight is the cheapest option for a flight between United States to Washington, D.C..

Delta, United Airlines, and Southwest are the most popular carriers operating from United States to Washington, D.C.

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Washington, D.C. from United States according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 12 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between United States and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

The number of flights available between United States and Washington, D.C. is 220 per day as of May 2026. The most frequent departure time is 8:00AM, with 35% of daily flights leaving in the afternoon.

As of May 2026, 1,543 flights take off from United States and land in Washington, D.C. each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.