฿6,455 Cheap Flights from Houston (IAH) to Washington (IAD)

View ฿6,455 flight on Fri, 26 Sept 2025Opens in a new window

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

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Cheap Flights from Houston (IAH) to Washington (IAD)

Prices were available within the past 7 days and start at ฿6,455 for one-way flights and ฿14,865 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 20 Sept - Wed, 24 Sept
IAH
Houston
IAD
Washington
฿14,865 Return, found 4 days ago
฿14,865
Return
found 4 days ago
Select United flight, departing Sat, 20 Sept from Houston to Washington, returning Wed, 24 Sept, priced at ฿14,865 found 4 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿16,575 Return, found 3 days ago
฿16,575
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿16,575 found 3 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿16,605 Return, found 3 days ago
฿16,605
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿16,605 found 3 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿16,775 Return, found 3 days ago
฿16,775
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿16,775 found 3 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿16,935 Return, found 3 days ago
฿16,935
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿16,935 found 3 days ago
United
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿17,200 Return, found 3 days ago
฿17,200
Return
found 3 days ago
Select United flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿17,200 found 3 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿17,420 Return, found 3 days ago
฿17,420
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿17,420 found 3 days ago
Delta
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿17,450 Return, found 3 days ago
฿17,450
Return
found 3 days ago
Select Delta flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿17,450 found 3 days ago
United
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿17,520 Return, found 3 days ago
฿17,520
Return
found 3 days ago
Select United flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿17,520 found 3 days ago
American Airlines
Mon, 22 Sept - Fri, 26 Sept
IAH
Houston
IAD
Washington
฿17,870 Return, found 3 days ago
฿17,870
Return
found 3 days ago
Select American Airlines flight, departing Mon, 22 Sept from Houston to Washington, returning Fri, 26 Sept, priced at ฿17,870 found 3 days ago

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

March is typically the cheapest month to fly

From ฿4,007 - ฿12,833 per traveller.
Flight from Houston to Washington route information
Origin airport
George Bush Intercontinental
Destination airport
Washington Dulles Intl.
Return price
฿14,865
Distance
1903 km
Average flight time
5 hours 15 mins

Perfect flights from Houston to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Houston to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of Chantilly, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible George Bush Intercontinental to Washington Dulles Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿6,455 and roundtrip prices from ฿14,865. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Washington Dulles Intl. and explore Chantilly and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your IAH to IAD travel arrangements today and embark on the journey of a lifetime in Washington.

Frequently asked questions

How much is a flight from Houston Airport to IAD?
Start packing your bags, because round-trip flights between George Bush Intercontinental Airport (IAH) and IAD start from ฿14,865. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to nab 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 IAH to IAD?
Most flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Houston Airport to IAD 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 George Bush Intercontinental Airport (IAH) to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Houston Airport to Washington Dulles Intl. Airport (IAD)?
It's around 1,900 kilometres between Houston Airport and Washington Dulles Intl. Airport (IAD), so expect to be in your seat for a while. Keep yourself occupied by packing things like your e-reader or the latest bestseller.
Which airlines fly direct from Houston Airport to Washington Dulles Intl. Airport (IAD)?
Flying directly from Houston Airport to IAD is simple with United Airlines (UA). This popular carrier offers 121 flights each month.
Are George Bush Intercontinental Airport (IAH) to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an awesome last-minute deal from Houston Airport to IAD, but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can be sure you're always seeing the latest offers.

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