Route guide
Cheap Flights from Washington, DC to Houston: Book Airline Tickets
- Distance
- about 1,190 mi
- Typical flight time
- 2 h 45 min – 3 h 45 min
- Airports
- 3 × 2
- Time difference
- 1 h behind

This page covers the practical side of flying between Washington, DC and Houston: which airports to compare, how long the trip takes, and when it is busy. It works for either direction. For a price on your dates, ask a specialist.
Quick answer: Washington, DC to Houston is about 1,190 miles (1,920 km) and a typical flight takes 2 h 45 min to 3 h 45 min. Houston is 1 hour behind Washington, DC. Washington, DC has 3 airports to compare and Houston has 2.
Airport pairs to compare
The Washington area has three airports. Reagan National is closest to the city, Dulles handles more long-haul traffic, and BWI sits between Washington and Baltimore. Houston has two main airports: Bush Intercontinental to the north and Hobby to the southeast. Hobby is closer to downtown.
| Pair | Departure airport | Arrival airport |
|---|---|---|
| DCA to IAH | Ronald Reagan Washington National | George Bush Intercontinental |
| DCA to HOU | Ronald Reagan Washington National | William P. Hobby |
| IAD to IAH | Washington Dulles International | George Bush Intercontinental |
| IAD to HOU | Washington Dulles International | William P. Hobby |
| BWI to IAH | Baltimore/Washington International | George Bush Intercontinental |
| BWI to HOU | Baltimore/Washington International | William P. Hobby |
About the airports
- DCA · Ronald Reagan Washington National
Closest to downtown and served by Metrorail. - IAD · Washington Dulles International
Farther out in Virginia, with the larger share of long-haul flights and a Metrorail Silver Line station. - BWI · Baltimore/Washington International
Between Baltimore and Washington, often competitive on price. - IAH · George Bush Intercontinental
The larger airport, north of the city, with a wide range of domestic and international flights. - HOU · William P. Hobby
Closer to downtown and a good option for domestic trips.
Airlines with a major base at either end
- At Washington, DC: United Airlines, American Airlines
- At Houston: United Airlines, Southwest Airlines
United Airlines has a base at both ends, which can make nonstop service more likely. Schedules change, so a specialist confirms what actually operates on your dates.
When to go and what to expect
Washington, DC
Spring is popular for cherry blossoms in late March and early April. Fall is pleasant, and summer is hot and humid.
Houston
Fall through spring is the most comfortable period. Summers are hot and humid, and hurricane season runs June through November.
Hurricane season runs from June through November, so check fare rules for changes if you travel in that window.
How long is Washington, DC to Houston?
At about 1,190 miles, Washington, DC to Houston is a short-to-medium flight. Fares on routes this length are sensitive to the day of the week and the time of day, so check a few departure times before you settle.
Time zones and timing
Houston is 1 hour behind Washington, DC, so you land at a local time 1 hour earlier than departure time plus flight time would suggest. Plan your arrival day around local time at the destination.
Getting between the airport and town
Washington, DC: Metrorail serves Reagan National directly and Dulles through the Silver Line, which avoids a lot of traffic.
Houston: Rental cars and ride-hail are the most common choices. Distances are large, so check where your hotel is before choosing an airport.
Planning ground transport too? See our car rental guide.
Good to know
- Check every airport pairing when you compare fares. Schedules and airline options can differ between them.
- Reagan National has a perimeter rule that limits most nonstop flights to a certain distance, so longer routes often use Dulles or BWI.
- Compare both airports when you look at fares, and keep weather in mind if you travel in late summer.
- Compare the total with bags included, not just the base fare. See baggage fees and taxes and fees.
Flying Houston to Washington, DC?
This route guide works in both directions. For other trips, see all flights from Washington, DC or all flights from Houston.
Frequently asked questions
How far is Washington, DC from Houston?
The straight-line distance between the main airports is about 1,190 miles (1,920 km). Routes can be longer in practice because of air traffic and weather.
How long is a flight from Washington, DC to Houston?
A typical scheduled flight takes roughly 2 h 45 min to 3 h 45 min in the air, depending on winds, the aircraft and the airports. Connecting itineraries take longer, and nonstop availability depends on the airline and dates.
Which airports can I use?
At Washington, DC: DCA (Ronald Reagan Washington National), IAD (Washington Dulles International), BWI (Baltimore/Washington International). At Houston: IAH (George Bush Intercontinental), HOU (William P. Hobby). Ask for prices on more than one pairing.
Is there a time difference?
Houston is 1 hour behind Washington, DC.
When is the best time to fly from Washington, DC to Houston?
In Washington, DC: Spring is popular for cherry blossoms in late March and early April. Fall is pleasant, and summer is hot and humid. In Houston: Fall through spring is the most comfortable period. Summers are hot and humid, and hurricane season runs June through November.Hurricane season runs from June through November, so check fare rules for changes if you travel in that window. Fares are usually highest in the busy periods described for each city, so flexible dates can help.
Which airlines should I compare for Washington, DC to Houston?
Airlines with a major base at either end include United Airlines, American Airlines and Southwest Airlines. A specialist compares them with other carriers on your dates, since schedules and availability change.
Do you show fares on this page?
No. Fares change constantly, so we do not publish prices that might be out of date. A specialist checks live availability and confirms the full total, including taxes and bags, before you pay.
Route details updated October 18, 2026.