Cheap flights from Houston to Washington, D.C. from $113

In general, January 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 $373. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $390.

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 $758 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 $1,194 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 $462 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 $250 on momondo.

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

United Airlines, Frontier and Delta 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 83% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 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 38% 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 68 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night 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. Friday has historically seen more delays on average compared to the rest of the week.

As of November 2026, there are 10 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 53% of flights taking off at noon.

76 flights are operational weekly from Houston to Washington, D.C. Dulles Intl Airport as of November 2026. The most popular departure day for this route is Wed, with 24% of flights per week taking off on this day.