S$232 Cheap Flights from Washington to Houston

View S$232 flight on Fri, 25 Jul, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Washington to Houston (IAD-IAH)

Prices were available within the past 7 days and start at S$232 for one-way flights and S$351 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 29 Jul - Wed, 6 Aug
IAD
Washington
IAH
Houston
S$351 Return, found 4 days ago
S$351
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul from Washington to Houston, returning Wed, 6 Aug, priced at S$351 found 4 days ago
Delta
Sat, 2 Aug - Wed, 6 Aug
IAD
Washington
IAH
Houston
S$369 Return, found 4 days ago
S$369
Return
found 4 days ago
Select Delta flight, departing Sat, 2 Aug from Washington to Houston, returning Wed, 6 Aug, priced at S$369 found 4 days ago
United
Mon, 4 Aug - Tue, 5 Aug
IAD
Washington
IAH
Houston
S$383 Return, found 4 days ago
S$383
Return
found 4 days ago
Select United flight, departing Mon, 4 Aug from Washington to Houston, returning Tue, 5 Aug, priced at S$383 found 4 days ago
Delta
Tue, 29 Jul - Thu, 7 Aug
IAD
Washington
IAH
Houston
S$392 Return, found 4 days ago
S$392
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul from Washington to Houston, returning Thu, 7 Aug, priced at S$392 found 4 days ago
Delta
Tue, 29 Jul - Sat, 2 Aug
IAD
Washington
IAH
Houston
S$398 Return, found 4 days ago
S$398
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul from Washington to Houston, returning Sat, 2 Aug, priced at S$398 found 4 days ago
Delta
Sat, 2 Aug - Thu, 7 Aug
IAD
Washington
IAH
Houston
S$409 Return, found 4 days ago
S$409
Return
found 4 days ago
Select Delta flight, departing Sat, 2 Aug from Washington to Houston, returning Thu, 7 Aug, priced at S$409 found 4 days ago
United
Thu, 31 Jul - Mon, 4 Aug
IAD
Washington
IAH
Houston
S$416 Return, found 4 days ago
S$416
Return
found 4 days ago
Select United flight, departing Thu, 31 Jul from Washington to Houston, returning Mon, 4 Aug, priced at S$416 found 4 days ago
Delta
Sun, 3 Aug - Wed, 6 Aug
IAD
Washington
IAH
Houston
S$422 Return, found 4 days ago
S$422
Return
found 4 days ago
Select Delta flight, departing Sun, 3 Aug from Washington to Houston, returning Wed, 6 Aug, priced at S$422 found 4 days ago
Delta
Tue, 29 Jul - Fri, 1 Aug
IAD
Washington
IAH
Houston
S$429 Return, found 4 days ago
S$429
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul from Washington to Houston, returning Fri, 1 Aug, priced at S$429 found 4 days ago
American Airlines
Fri, 1 Aug - Mon, 4 Aug
IAD
Washington
IAH
Houston
S$472 Return, found 4 days ago
S$472
Return
found 4 days ago
Select American Airlines flight, departing Fri, 1 Aug from Washington to Houston, returning Mon, 4 Aug, priced at S$472 found 4 days ago
Washington to Houston route information
Origin airport
Washington Dulles Intl.
Destination airport
George Bush Intercontinental
Return price
S$350
Distance
1903 km
Average flight time
3 hours 40 mins

Perfect flights from Washington to Houston

Your Journey from Washington to Houston

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Houston caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Washington Dulles Intl. to George Bush Intercontinental caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Houston Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to George Bush Intercontinental that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$232 and roundtrip prices from S$351*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Houston with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Houston

Picture yourself stepping off the plane in Houston and immersing yourself in the unique atmosphere of Houston. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Houston Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Houston.
 

Beyond the Flight – Exploring Houston

With Expedia, your adventure extends beyond the flight. Explore Houston at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Houston with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Houston with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from IAD to George Bush Intercontinental Airport (IAH)?
Start packing your bags, because round-trip journeys from Washington Dulles Intl. Airport (IAD) to IAH start from S$351. That’s based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book now to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to IAH?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from IAD to IAH that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Washington Dulles Intl. Airport (IAD) to George Bush Intercontinental Airport (IAH) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Houston Airport?
You’ll be in the air for a while, as the flight distance from Dulles Intl. Airport to George Bush Intercontinental Airport (IAH) is 1,900 kilometres. Put together a playlist of your favourite tunes before leaving home to keep yourself entertained during your flight.
Which airlines fly direct from IAD to Houston Airport?
If you’d like to fly directly from Washington Dulles Intl. Airport (IAD) to IAH, United Airlines (UA) is a top choice. It operates 121 flights each month between Chantilly and Houston.
Are IAD to IAH flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Washington Dulles Intl. Airport (IAD) to George Bush Intercontinental Airport (IAH) at the last minute could save you some cash. However, it could end up costing a good deal more! If you’d prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred air carrier hasn’t released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

Houston Airports

Houston

Washington to George Bush Intercontinental
S$350.40
*Available to Expedia members.