฿5,820 Cheap Flights from Washington (DCA) to Houston (IAH)

View ฿5,820 flight on Wed, 21 Jan 2026Opens in a new window

Popular airlines from Ronald Reagan National Airport (DCA) to George Bush Intercontinental Airport (IAH)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿5,820 for one-way flights and ฿9,715 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 4 Feb - Sat, 14 Feb
DCA
Washington
IAH
Houston
฿9,715 Return, found 6 days ago
฿9,715
Return
found 6 days ago
Select Delta flight, departing Wed, 4 Feb from Washington to Houston, returning Sat, 14 Feb, priced at ฿9,715 found 6 days ago
United
Wed, 4 Feb - Sat, 14 Feb
DCA
Washington
IAH
Houston
฿10,680 Return, found 6 days ago
฿10,680
Return
found 6 days ago
Select United flight, departing Wed, 4 Feb from Washington to Houston, returning Sat, 14 Feb, priced at ฿10,680 found 6 days ago
Delta
Wed, 4 Feb - Thu, 12 Feb
DCA
Washington
IAH
Houston
฿10,835 Return, found 6 days ago
฿10,835
Return
found 6 days ago
Select Delta flight, departing Wed, 4 Feb from Washington to Houston, returning Thu, 12 Feb, priced at ฿10,835 found 6 days ago
Delta
Wed, 4 Feb - Fri, 13 Feb
DCA
Washington
IAH
Houston
฿11,500 Return, found 6 days ago
฿11,500
Return
found 6 days ago
Select Delta flight, departing Wed, 4 Feb from Washington to Houston, returning Fri, 13 Feb, priced at ฿11,500 found 6 days ago
Delta
Wed, 4 Feb - Thu, 12 Feb
DCA
Washington
IAH
Houston
฿11,790 Return, found 6 days ago
฿11,790
Return
found 6 days ago
Select Delta flight, departing Wed, 4 Feb from Washington to Houston, returning Thu, 12 Feb, priced at ฿11,790 found 6 days ago
United
Wed, 4 Feb - Thu, 12 Feb
DCA
Washington
IAH
Houston
฿11,800 Return, found 6 days ago
฿11,800
Return
found 6 days ago
Select United flight, departing Wed, 4 Feb from Washington to Houston, returning Thu, 12 Feb, priced at ฿11,800 found 6 days ago
Delta
Thu, 5 Feb - Fri, 13 Feb
DCA
Washington
IAH
Houston
฿12,615 Return, found 6 days ago
฿12,615
Return
found 6 days ago
Select Delta flight, departing Thu, 5 Feb from Washington to Houston, returning Fri, 13 Feb, priced at ฿12,615 found 6 days ago

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

March is typically the cheapest month to fly

From ฿3,546 - ฿13,624 per traveller.
Flight from Washington to Houston route information
Origin airport
Ronald Reagan Washington National
Destination airport
George Bush Intercontinental
Return price
฿9,715
Distance
1929 km
Average flight time
2 hours 42 mins

Perfect flights from Washington to Houston

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Houston. 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 , 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 Ronald Reagan Washington National to George Bush Intercontinental ticket options cater to your travel preferences, with incredible one-way fares from ฿5,820 and roundtrip prices from ฿9,715. 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 George Bush Intercontinental and explore 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 to travel arrangements today and embark on the journey of a lifetime in Houston.

Frequently asked questions

How much is a flight from National Airport to George Bush Intercontinental Airport (IAH)?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from National Airport to Houston Airport start from ฿9,715. Make your booking ASAP to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from DCA to George Bush Intercontinental Airport (IAH)?
Every airline has its own set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Ronald Reagan Washington National Airport (DCA) to Houston Airport 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 DCA to Houston Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from National Airport to George Bush Intercontinental Airport (IAH)?
It's around 1,950 kilometres between Arlington and Houston, so you'll be up in the air for a while. Keep yourself entertained by packing things like playing cards (if you're travelling with friends) or a thrilling novel.
Which airlines fly direct from DCA to George Bush Intercontinental Airport (IAH)?
If you want to fly straight from Ronald Reagan Washington National Airport (DCA) to Houston Airport, United Airlines (UA) is a top choice. It operates 208 monthly flights between Arlington and Houston.
Are Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes score a bargain, with some of the cheapest airfares from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) surfacing a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.
*Available to Expedia members.