Cheap Flights from Washington Dulles to Houston George Bush Intercntl. from $211

Compare Washington Dulles to Houston George Bush Intercntl. flight deals

Find the cheapest month or even day of the year to fly to Houston George Bush Intercntl.

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Flight deals from Washington Dulles Airport to Houston George Bush Intercntl. Airport

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Houston George Bush Intercntl. Airport? If you want to travel next month, return fares start from $226. Find the lowest prices on one-way and return tickets right here.

Houston.$211 per passenger.Departing Sat, 21 Feb, returning Sat, 28 Feb.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 21 Feb, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sat, 28 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $211, select.

Houston.$226 per passenger.Departing Mon, 2 Mar, returning Wed, 4 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 2 Mar, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Wed, 4 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $226, select.

Houston.$276 per passenger.Departing Fri, 27 Feb, returning Wed, 4 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Fri, 27 Feb, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Wed, 4 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $276, select.

Houston.$299 per passenger.Departing Wed, 11 Mar, returning Wed, 13 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 11 Mar, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Wed, 13 May, arriving in Washington Dulles.Price includes taxes and charges.From $299, select.

Houston.$299 per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 25 Apr, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sat, 2 May, arriving in Washington Dulles.Price includes taxes and charges.From $299, select.

Houston.$355 per passenger.Departing Thu, 16 Apr, returning Sun, 19 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 16 Apr, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sun, 19 Apr, arriving in Washington Dulles.Price includes taxes and charges.From $355, select.

Houston.$357 per passenger.Departing Sat, 9 May, returning Sun, 17 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 9 May, arriving in Houston George Bush Intercntl..Inbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sun, 17 May, arriving in Washington Dulles.Price includes taxes and charges.From $357, select.

Houston.$360 per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 25 Apr, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 2 May, arriving in Washington Dulles.Price includes taxes and charges.From $360, select.

Houston.$360 per passenger.Departing Sat, 9 May, returning Sat, 16 May.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 9 May, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 16 May, arriving in Washington Dulles.Price includes taxes and charges.From $360, select.

Houston.$465 per passenger.Departing Tue, 24 Feb, returning Sat, 28 Feb.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 24 Feb, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Sat, 28 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $465, select.

Houston.$465 per passenger.Departing Tue, 3 Mar, returning Wed, 4 Mar.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 3 Mar, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Wed, 4 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $465, select.

Houston.$468 per passenger.Departing Tue, 24 Feb, returning Tue, 3 Mar.Return flight with United.Outbound direct flight with United departs from Washington Dulles on Tue, 24 Feb, arriving in Houston George Bush Intercntl..Inbound direct flight with United departs from Houston George Bush Intercntl. on Tue, 3 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $468, select.

Find the cheapest month to fly from Washington Dulles to Houston George Bush Intercntl.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Houston George Bush Intercntl. flights are currently cheapest in February.

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Direct flights from Washington Dulles to Houston George Bush Intercntl.

Washington Dulles to Houston George Bush Intercntl.: Alternative routes

Compare routes from Washington Dulles to Houston below. You may find an airport to fly into that's cheaper, faster, or easier than Houston George Bush Intercntl..

Washington D.C. to Houston: Flight information

The things to know before you go.

Cheapest flight found	$211
Cheapest month to fly	February
Average flight time	3 hrs, 35 mins
Most popular airline	United
Average flights per week	133

Finding cheap flights from Washington Dulles to Houston George Bush Intercntl.: Frequently asked questions

How much are return flights from Washington Dulles to Houston George Bush Intercntl.?

The best price we found for a return flight from Washington Dulles to Houston George Bush Intercntl. is $211. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Washington Dulles to Houston George Bush Intercntl.?

3 hours and 35 minutes is the average flight time from Washington Dulles to Houston George Bush Intercntl..

Which airlines fly direct from Washington Dulles to Houston George Bush Intercntl.?

United, Air New Zealand and Avianca fly direct from Washington Dulles to Houston George Bush Intercntl..

How many flights are there a week from Washington Dulles to Houston George Bush Intercntl.?

As of February 2026, there are 133 flights per week flying from Washington Dulles to Houston George Bush Intercntl..

When is the cheapest time to fly from Washington Dulles to Houston George Bush Intercntl.?

The cheapest month to fly from Washington Dulles to Houston George Bush Intercntl. is usually February.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Houston George Bush Intercntl. Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Houston George Bush Intercntl. Airport on Saturday, 21 February 2026.

Can I get a direct flight from Washington Dulles Airport to Houston George Bush Intercntl. Airport?

Yes – the average flight time is 3 hours and 35 minutes.

How can I find the best flight deal to Houston George Bush Intercntl.?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston George Bush Intercntl. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Houston?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Washington Dulles Airport to Houston George Bush Intercntl. with?

Currently, Frontier Airlines and United offer the cheapest flight tickets to Houston George Bush Intercntl..

Travelling from Washington Dulles International Airport (IAD) to George Bush Intercontinental Airport (IAH): what you need to know

Around 3 hours 15 minutes is how long you can expect to be in the air on a direct flight from Washington Dulles International Airport to George Bush Intercontinental Airport.
Houston's timezone is UTC-5, making Houston one hour behind Washington DC.
Choose from 99 weekly Washington Dulles International Airport to George Bush Intercontinental Airport flights. The 06:00 departure with United Airlines is the earliest available. United Airlines operates the latest service of the day at 22:30.
Arrive at the airport on time so you don't miss your IAD to IAH flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.
During popular months such as April, it's best to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during peak periods in general.
Flying into Houston (and then exploring more of United States!) is a cinch with United Airlines. This popular carrier offers direct flights from Washington Dulles International Airport to George Bush Intercontinental Airport.
United Airlines is the most frequently booked airline on this route.
United Airlines is the most punctual carrier that offers IAD to IAH flights, with 78.62% of its services arriving as planned.
If you'd like to explore another city along the way, just uncheck 'Direct flights only' when searching for your ticket from Washington Dulles International Airport to George Bush Intercontinental Airport. Here are the most popular stopovers between IAD and IAH:
- Hartsfield-Jackson Atlanta International Airport
- Nashville International Airport
- Charlotte Douglas International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to George Bush Intercontinental Airport (IAH)

$104 is currently the lowest price for a one-way Washington Dulles International Airport to George Bush Intercontinental Airport flight. A return flight starts at $211. These fares may change depending on availability.
Get cheap tickets from IAD to IAH by booking six months ahead. Based on our research, that's the sweet spot for bagging a bargain.
Plan your trip for May. That's the cheapest month for flights from Washington Dulles International Airport to George Bush Intercontinental Airport. If you have flexibility with your dates, try out the 'Whole month' tool to find the cheapest price across every month.
There's no need to check every day to find out if fares have gone down when you set up a Price Alert. We'll notify you the moment the price changes on cheap flights from IAD to IAH.
Pick your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Washington Dulles International Airport to George Bush Intercontinental Airport.

Handy information about Washington Dulles International Airport (IAD)

IAD is located at 1 Saarinen Circle.
Of all flights leaving Washington Dulles International Airport, 74.39% land on time at their destination.
Washington Dulles International Airport is about 56 kilometres from central Washington DC. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 50 minutes or so to arrive, depending on the traffic.
Catching public transport? Expect a journey time of around 3 hours 25 minutes.
Searching for a convenient hotel near IAD? If you're boarding an early flight from Washington Dulles International Airport to George Bush Intercontinental Airport, these stays will have you moments from your departure lounge:

Arriving at George Bush Intercontinental Airport (IAH)

The last thing you need is a long journey to your hotel if you're landing late on a Washington Dulles International Airport to George Bush Intercontinental Airport flight. Reserve one of these accommodation options near IAH instead:
Go wherever you want, whenever you want with a George Bush Intercontinental Airport rental car. Book your wheels from Dollar, Thrifty or Sixt and experience more of Houston and beyond.
Lock in the lowest price by reserving your ride from George Bush Intercontinental Airport around three weeks ahead of your departure.

Getting from George Bush Intercontinental Airport (IAH) to central Houston

You'll find IAH at 16930 JFK Boulevard.
George Bush Intercontinental Airport to central Houston has a drive time of around 20 minutes. It's approximately 27 kilometres away.
It takes around 50 minutes when travelling by public transport.

When to fly to George Bush Intercontinental Airport (IAH)

July is the busiest month for flights from Washington Dulles International Airport to George Bush Intercontinental Airport. To escape the crowds, go to Houston in February.
When reserving your flight from Washington Dulles International Airport to George Bush Intercontinental Airport, consider the type of weather you like. August is the warmest month in Houston, with temperatures ranging from 24ºC to 40ºC.
January has average temperatures of between 5ºC and 19ºC. Look for cheap tickets from IAD to IAH sometime then if you'd rather travel in cooler conditions.

Explore more of United States

Houston is always a good idea, but there are so many other corners of United States waiting to be explored. About 306 kilometres west of Houston, a visit to San Antonio will keep your itinerary packed. Start with leading attractions like The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral.
Dallas is another well-known destination in United States and is around 370 kilometres north of Houston. No journey is complete without dropping by Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.