Cheap flights from Washington, D.C. Dulles Intl Airport to Houston from $73

The month of September is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Washington, D.C. Dulles Intl Airport, with most prices found around $192. If you are unable to visit Houston George Bush Intcntl Airport during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around $281.

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport is on a Friday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Friday will often find tickets for as low as $482. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $532.

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $424. Try not to purchase tickets in the afternoon because they tend to be around $656. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston George Bush Intcntl Airport from Washington, D.C. Dulles Intl Airport for as low as $308 on momondo.

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

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport flight.

As of February 2026, prices for Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport flights are approximately 36% more expensive when compared to flights at the same time last year.

United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Houston George Bush Intcntl

United Airlines, Frontier and American Airlines are the top three most popular airlines that fly to Houston George Bush Intcntl Airport from Washington, D.C. Dulles Intl Airport 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 Houston George Bush Intcntl Airport. Keep in mind that there are 4 different airlines that fly to Houston George Bush Intcntl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between Washington, D.C. and Houston have experienced a delay on any given week. The average delay length over the past 12 months has been 158 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.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday 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 13% of their flights experiencing any sort of delay.

Charlotte (CLT) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $149.

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 6h 17m.

Charlotte (CLT) has the shortest average layover time for this route: 1h 41m.

12 flights are operational daily from Washington, D.C. Dulles Intl Airport to Houston George Bush Intcntl Airport as of February 2026. The most popular departure time for this route is 5:00PM, with 61% of flights per day taking off in the afternoon.

The number of flights available between Washington, D.C. Dulles Intl Airport and Houston George Bush Intcntl Airport is 88 per week as of February 2026. The most frequent departure day is Wed, with 19% of weekly flights leaving on this day.