$64 Cheap Flights from Washington (DCA) to Houston (IAH)

View $64 flight on Wed, Feb 25, 2026Opens in a new window

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

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Cheap Flights from Washington to Houston (DCA-IAH)

Prices were available within the past 7 days and start at $64 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Feb 25 - Sat, Feb 28
DCA
Washington
IAH
Houston
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Feb 25 from Washington to Houston, returning Sat, Feb 28, priced at $128 just found
Frontier Airlines
Tue, Feb 24 - Thu, Feb 26
DCA
Washington
IAH
Houston
$138 Roundtrip, found 2 hours ago
$138
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, Feb 24 from Washington to Houston, returning Thu, Feb 26, priced at $138 found 2 hours ago
Frontier Airlines
Sat, Feb 21 - Tue, Feb 24
DCA
Washington
IAH
Houston
$159 Roundtrip, just found
$159
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Feb 21 from Washington to Houston, returning Tue, Feb 24, priced at $159 just found
Frontier Airlines
Mon, Feb 23 - Thu, Feb 26
DCA
Washington
IAH
Houston
$169 Roundtrip, just found
$169
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Feb 23 from Washington to Houston, returning Thu, Feb 26, priced at $169 just found
Frontier Airlines
Wed, Mar 4 - Mon, Mar 9
DCA
Washington
IAH
Houston
$173 Roundtrip, just found
$173
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Mar 4 from Washington to Houston, returning Mon, Mar 9, priced at $173 just found
Frontier Airlines
Mon, Feb 23 - Thu, Feb 26
DCA
Washington
IAH
Houston
$179 Roundtrip, just found
$179
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Feb 23 from Washington to Houston, returning Thu, Feb 26, priced at $179 just found
Delta
Sat, May 2 - Tue, May 5
DCA
Washington
IAH
Houston
$214 Roundtrip, just found
$214
Roundtrip
just found
Select Delta flight, departing Sat, May 2 from Washington to Houston, returning Tue, May 5, priced at $214 just found
American Airlines
Tue, May 5 - Thu, May 7
DCA
Washington
IAH
Houston
$217 Roundtrip, found 3 hours ago
$217
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, May 5 from Washington to Houston, returning Thu, May 7, priced at $217 found 3 hours ago
United
Thu, Apr 9 - Mon, Apr 13
DCA
Washington
IAH
Houston
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Thu, Apr 9 from Washington to Houston, returning Mon, Apr 13, priced at $217 just found
JetBlue Airways
Tue, Mar 10 - Tue, Mar 17
DCA
Washington
IAH
Houston
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Tue, Mar 10 from Washington to Houston, returning Tue, Mar 17, priced at $317 found 1 hour ago

Alternative airports near Houston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to George Bush Intercontinental IAH. Cheapest option available. Average driving time to city center is 24 minutes. Flights from $180
IAH
George Bush Intercontinental
Cheapest
Average driving time to city center24 min
Flights from $180

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

March is typically the cheapest month to fly

From $110 - $432 per traveler.
Flights from Washington (DCA) to Houston (IAH)
Origin airport
Ronald Reagan Washington National
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, United
Roundtrip price
$128
Distance
1206 mi
Average flight time
2 hours 45 mins

Washington to Houston Flights

The cheapest times to fly from Washington to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Houston are during the month of February. You can find some of the cheapest flights from Washington to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Houston

Sunday is one of the best days to book for cheap flights from Washington to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Houston in 2026. You can also book with separate airlines for your outbound and return journeys, from $64 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) cost?
Snag a cheap one-way flight from $64 or cheap return flight from $128 from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
February is the most affordable month to fly from DCA to IAH. Traveling during quieter months is often the key to better flight prices.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
Board a direct flight with United Airlines and travel straight from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH).
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
To find the cheapest airline that'll fly you from DCA to IAH, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
When taking off from Ronald Reagan Washington National Airport (DCA), you can pick from an average of 6 daily direct flights to George Bush Intercontinental Airport (IAH).
What are the most popular departure times for flights from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
The 6 AM departures from DCA to IAH see the highest demand. They can also be more expensive. If you're looking to save, choose a less crowded time to fly.
What day of the week has the most flights from DCA to IAH?
If you jet off on a Friday, you'll get the greatest range of options for flights from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH).
What is the earliest flight from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
Ronald Reagan Washington National Airport (DCA)'s first flight to George Bush Intercontinental Airport (IAH) is at approximately 6:00AM UTC-5. With a total travel time of 3h 42m, you'll touch down at around 8:42AM UTC-6.
How long does it take to fly from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
It takes roughly 3 hours and 41 minutes to cover the 1,200 mi from DCA to IAH.
What airline has the least delays from DCA to IAH?
Consider booking with United Airlines if you'd like to fly straight from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) without any interruptions. This carrier has the best track record for punctuality, with an on-time score of 83%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
To avoid possible delays on the Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Houston from Ronald Reagan Washington National Airport (DCA)?
If you're leaving on a direct flight from Ronald Reagan Washington National Airport (DCA) to Houston, you'll come into land at either George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU).
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH) last-minute?
Booking your plane ticket from DCA to IAH shortly before your getaway is generally more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a DCA to IAH flight and hotel package?
You can save money by securing a DCA to IAH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your preferred flights and accommodations, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to George Bush Intercontinental Airport (IAH)?
If you reserved your DCA to IAH flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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