$136 Cheap Flights from Houston (IAH) to Washington (DCA)

View $136 flight on Tue, Nov 4, 2025Opens in a new window

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

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Cheap Flights from Houston to Washington (IAH-DCA)

Prices were available within the past 7 days and start at $136 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, Nov 1 - Tue, Nov 11
IAH
Houston
DCA
Washington
$251 Roundtrip, found 9 hours ago
$251
Roundtrip
found 9 hours ago
Select JetBlue Airways flight, departing Sat, Nov 1 from Houston to Washington, returning Tue, Nov 11, priced at $251 found 9 hours ago
JetBlue Airways
Tue, Nov 11 - Wed, Nov 12
IAH
Houston
DCA
Washington
$271 Roundtrip, found 3 hours ago
$271
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Tue, Nov 11 from Houston to Washington, returning Wed, Nov 12, priced at $271 found 3 hours ago
American Airlines
Thu, Dec 25 - Wed, Dec 31
IAH
Houston
DCA
Washington
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Dec 25 from Houston to Washington, returning Wed, Dec 31, priced at $273 found 2 days ago
United
Tue, Sep 30 - Thu, Oct 2
IAH
Houston
DCA
Washington
$284 Roundtrip, found 1 hour ago
$284
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Sep 30 from Houston to Washington, returning Thu, Oct 2, priced at $284 found 1 hour ago
United
Tue, Sep 30 - Thu, Oct 2
IAH
Houston
DCA
Washington
$289 Roundtrip, found 1 hour ago
$289
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Sep 30 from Houston to Washington, returning Thu, Oct 2, priced at $289 found 1 hour ago
JetBlue Airways
Sat, Nov 1 - Mon, Nov 3
IAH
Houston
DCA
Washington
$292 Roundtrip, found 1 hour ago
$292
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Sat, Nov 1 from Houston to Washington, returning Mon, Nov 3, priced at $292 found 1 hour ago
Frontier Airlines
Tue, Sep 23 - Sat, Oct 25
IAH
Houston
DCA
Washington
$292 Roundtrip, found 11 hours ago
$292
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, Sep 23 from Houston to Washington, returning Sat, Oct 25, priced at $292 found 11 hours ago
Delta
Tue, Sep 30 - Thu, Oct 2
IAH
Houston
DCA
Washington
$294 Roundtrip, found 1 hour ago
$294
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Sep 30 from Houston to Washington, returning Thu, Oct 2, priced at $294 found 1 hour ago
Frontier Airlines
Tue, Nov 11 - Wed, Nov 19
IAH
Houston
DCA
Washington
$295 Roundtrip, found 13 hours ago
$295
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Tue, Nov 11 from Houston to Washington, returning Wed, Nov 19, priced at $295 found 13 hours ago
United
Mon, Nov 10 - Wed, Nov 12
IAH
Houston
DCA
Washington
$297 Roundtrip, found 1 hour ago
$297
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Nov 10 from Houston to Washington, returning Wed, Nov 12, priced at $297 found 1 hour ago

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

February is typically the cheapest month to fly

From $110 - $304 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

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

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from $120
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from $120
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $293
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $293
Flights from Houston (IAH) to Washington (DCA)
Origin airport
George Bush Intercontinental
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, United
Roundtrip price
$250
Distance
1206 mi
Average flight time
4 hours 38 mins

Houston to Washington Flights

The cheapest times to fly from Houston to Washington

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 Houston to Washington are during the month of November. You can find some of the cheapest flights from Houston to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Washington

Sunday is one of the best days to book for cheap flights from Houston to Washington: 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 Houston to Washington

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 Houston to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $136 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 Houston to Washington 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 Houston to Washington 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 George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) cost?
Lock in a cheap one-way flight from $136 or cheap return flight from $251 from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Flying in November can help you save, as it's the cheapest month for flights between IAH and DCA. You'll often find the lowest fares during the off-season.
Which airlines fly direct from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Catch a nonstop flight with United Airlines and travel straight from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA).
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAH to DCA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
With, on average, 6 nonstop flights that operate from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) every day, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Flights between IAH and DCA are busiest at 7 AM. If you're after a less crowded experience and potentially cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from IAH to DCA?
Sunday offers the most flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA). Consider jetting off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Hop on the earliest flight at around 7:33AM UTC-6, departing from George Bush Intercontinental Airport (IAH). You'll be flying for approximately 2h 58m, landing at Ronald Reagan Washington National Airport (DCA) at approximately 11:31AM UTC-5.
How long does it take to fly from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Flights from IAH to DCA have an average travel time of 2 hours and 59 minutes. The total distance between the two airports is 1,200 mi.
What airline has the least delays from IAH to DCA?
With 81% of flights generally arriving on time, United Airlines has the best on-time performance for direct flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA). To monitor your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
To arrive at Ronald Reagan Washington National Airport (DCA) on schedule, choose a flight that leaves from George Bush Intercontinental Airport (IAH) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Washington from George Bush Intercontinental Airport (IAH)?
Board a direct flight from George Bush Intercontinental Airport (IAH) to Washington and touch down at any one of these hubs:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) last-minute?
Holding off until just before your departure to book a ticket from IAH to DCA often results in higher prices. Although you may find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book an IAH to DCA flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to DCA flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the stress out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
In most instances, you can cancel or reschedule your IAH to DCA flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want further information, visit our Customer Service portal.

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