฿4,825 Cheap Flights from Houston (IAH) to Washington (IAD)

View ฿4,825 flight on Sat, 25 Oct 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿4,825 for one-way flights and ฿9,650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿9,650 Return, found 1 day ago
฿9,650
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿9,650 found 1 day ago
Delta
Wed, 10 Sep - Wed, 17 Sep
IAH
Houston
IAD
Washington
฿9,690 Return, found 5 days ago
฿9,690
Return
found 5 days ago
Select Delta flight, departing Wed, 10 Sep from Houston to Washington, returning Wed, 17 Sep, priced at ฿9,690 found 5 days ago
United
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿10,630 Return, found 1 day ago
฿10,630
Return
found 1 day ago
Select United flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿10,630 found 1 day ago
United
Wed, 10 Sep - Wed, 17 Sep
IAH
Houston
IAD
Washington
฿10,680 Return, found 5 days ago
฿10,680
Return
found 5 days ago
Select United flight, departing Wed, 10 Sep from Houston to Washington, returning Wed, 17 Sep, priced at ฿10,680 found 5 days ago
Delta
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿10,950 Return, found 1 day ago
฿10,950
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿10,950 found 1 day ago
Delta
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿11,220 Return, found 1 day ago
฿11,220
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿11,220 found 1 day ago
Delta
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿11,305 Return, found 1 day ago
฿11,305
Return
found 1 day ago
Select Delta flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿11,305 found 1 day ago
United
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿11,540 Return, found 1 day ago
฿11,540
Return
found 1 day ago
Select United flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿11,540 found 1 day ago
United
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿11,610 Return, found 1 day ago
฿11,610
Return
found 1 day ago
Select United flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿11,610 found 1 day ago
American Airlines
Sat, 18 Oct - Sat, 25 Oct
IAH
Houston
IAD
Washington
฿12,645 Return, found 1 day ago
฿12,645
Return
found 1 day ago
Select American Airlines flight, departing Sat, 18 Oct from Houston to Washington, returning Sat, 25 Oct, priced at ฿12,645 found 1 day ago

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

March is typically the cheapest month to fly

From ฿4,018 - ฿10,095 per traveller.

Graph displaying average flight prices per month

Flight from Houston to Washington route information
Origin airport
George Bush Intercontinental
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Return price
฿9,650
Distance
1903 km
Average flight time
5 hours 14 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 ฿4,825 and roundtrip prices from ฿9,650. 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 ฿9,650. 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.

Explore a world of travel with Expedia

*Available to Expedia members.