Cheap flights from Washington, D.C. to Houston from $129

The month of September is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Washington, D.C., with most prices found around $33. If you are unable to visit Houston George Bush Intcntl Airport during the month of September, then departing from Washington, D.C. during the month November is also very affordable. Most momondo users find prices during this month for around $53.

The cheapest day to depart from Washington, D.C. 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 $505. 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 $562.

Our data shows that the cheapest Washington, D.C. 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 $487. Try not to purchase tickets in the afternoon because they tend to be around $650. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Houston George Bush Intcntl Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston George Bush Intcntl Airport for around $395 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. for as low as $332 on momondo.

There are 4 cabin classes available to choose from on Washington, D.C. to Houston George Bush Intcntl Airport 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 4% on your flight if you consider stops on a Washington, D.C. to Houston George Bush Intcntl Airport flight.

As of July 2026, prices for Washington, D.C. to Houston George Bush Intcntl Airport flights are approximately 30% cheaper when compared to flights at the same time last year.

Delta and United Airlines are the most popular carriers operating from Washington, D.C. 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. according to our data. United Airlines is the first choice among our users, with 66% 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 12% 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 166 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon 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. Friday 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 12% of their flights experiencing any sort of delay.

Miami (MIA) was the most common stop: 50% 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 Atlanta (ATL) have the shortest average one-way travel time: 6h 50m.

Miami (MIA) has the shortest average layover time for this route: 5h 22m.

31 flights are operational daily from Washington, D.C. to Houston George Bush Intcntl Airport as of July 2026. The most popular departure time for this route is 6:00AM, with 48% of flights per day taking off in the afternoon.

The number of flights available between Washington, D.C. and Houston George Bush Intcntl Airport is 219 per week as of July 2026. The most frequent departure day is Wed, with 22% of weekly flights leaving on this day.