S$205 Cheap Flights from Washington to Houston

View S$205 flight on Tue, 7 Oct, 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$205 for one-way flights and S$408 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$408 Return, found 19 hours ago
S$408
Return
found 19 hours ago
Select Delta flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$408 found 19 hours ago
Delta
Thu, 4 Dec - Thu, 11 Dec
IAD
Washington
IAH
Houston
S$441 Return, found 4 days ago
S$441
Return
found 4 days ago
Select Delta flight, departing Thu, 4 Dec from Washington to Houston, returning Thu, 11 Dec, priced at S$441 found 4 days ago
Delta
Sat, 13 Sep - Mon, 15 Sep
IAD
Washington
IAH
Houston
S$442 Return, found 1 day ago
S$442
Return
found 1 day ago
Select Delta flight, departing Sat, 13 Sep from Washington to Houston, returning Mon, 15 Sep, priced at S$442 found 1 day ago
United
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$448 Return, found 19 hours ago
S$448
Return
found 19 hours ago
Select United flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$448 found 19 hours ago
United
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$461 Return, found 19 hours ago
S$461
Return
found 19 hours ago
Select United flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$461 found 19 hours ago
Delta
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$475 Return, found 19 hours ago
S$475
Return
found 19 hours ago
Select Delta flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$475 found 19 hours ago
Delta
Thu, 4 Dec - Thu, 11 Dec
IAD
Washington
IAH
Houston
S$480 Return, found 4 days ago
S$480
Return
found 4 days ago
Select Delta flight, departing Thu, 4 Dec from Washington to Houston, returning Thu, 11 Dec, priced at S$480 found 4 days ago
United
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$486 Return, found 19 hours ago
S$486
Return
found 19 hours ago
Select United flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$486 found 19 hours ago
Delta
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$488 Return, found 19 hours ago
S$488
Return
found 19 hours ago
Select Delta flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$488 found 19 hours ago
American Airlines
Tue, 7 Oct - Tue, 14 Oct
IAD
Washington
IAH
Houston
S$500 Return, found 19 hours ago
S$500
Return
found 19 hours ago
Select American Airlines flight, departing Tue, 7 Oct from Washington to Houston, returning Tue, 14 Oct, priced at S$500 found 19 hours ago

Find the cheapest month to fly from Washington (IAD) to Houston (IAH)

September is typically the cheapest month to fly

From S$168 - S$446 per traveller.

Graph displaying average flight prices per month

Washington to Houston route information
Origin airport
Washington Dulles Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines, Delta, United
Return price
S$408
Distance
1903 km
Average flight time
2 hours 35 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$205 and roundtrip prices from S$408*.
 

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 . 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$408. 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

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