Cheap flights from Houston to Washington, D.C. from $95

In general, December is the cheapest month to fly from Houston 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 $63. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of December, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $68.

Flying to Washington, D.C. Dulles Intl Airport from Houston at noon is the least expensive time of day to depart. momondo users have found prices as low as $921 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $979 on average. Flights to Washington, D.C. Dulles Intl Airport from Houston in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Houston George Bush Intcntl to Washington, D.C. Dulles Intl for the best Houston - Washington, D.C. Dulles Intl flight prices

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Houston 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 $390 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 Houston for as low as $204 on momondo.

Delta, United Airlines, and American Airlines are the most popular carriers operating from Houston to Washington, D.C. Dulles Intl

United Airlines, Frontier and Spirit Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Houston according to our data. United Airlines is the first choice among our users, with 75% 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.

Historically, on average around 18% of flights between Houston and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 81 minutes.

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

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

As of May 2026, there are 14 flights per day flying from Houston to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 7:00AM, with 34% of flights taking off in the evening.

101 flights are operational weekly from Houston to Washington, D.C. Dulles Intl Airport as of May 2026. The most popular departure day for this route is Tue, with 18% of flights per week taking off on this day.