$143 Cheap American Airlines flights Houston (IAH) to Washington (DCA)

View $143 flight on Sat, Dec 13, 2025Opens in a new window
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$143 Cheap American Airlines flights Houston (IAH) to Washington (DCA)

Prices were available within the past 7 days and start at $143 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Dec 24 - Wed, Jan 7
IAH
Houston
DCA
Washington
$238 Roundtrip, found 6 hours ago
$238
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Dec 24 from Houston to Washington, returning Wed, Jan 7, priced at $238 found 6 hours ago
American Airlines
Wed, Dec 24 - Wed, Jan 7
IAH
Houston
DCA
Washington
$284 Roundtrip, found 6 hours ago
$284
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Dec 24 from Houston to Washington, returning Wed, Jan 7, priced at $284 found 6 hours ago
American Airlines
Wed, Jan 21 - Sat, Jan 24
IAH
Houston
DCA
Washington
$285 Roundtrip, found 1 hour ago
$285
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Jan 21 from Houston to Washington, returning Sat, Jan 24, priced at $285 found 1 hour ago
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
Popular airline
United
Distance
1206 mi
Average flight time
3 hours 58 mins

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Frequently asked questions

How much is an American Airlines flight from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Set the "Price (lowest to highest)" filter on Expedia to find cheap American Airlines round-trip flights from $238 from IAH to DCA. Affordable one-way tickets from $143 are also available.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAH to DCA with American Airlines?
American Airlines flights to Washington are usually cheaper in the off-peak months of January and February. Whether you're in search of a one-way or round-trip ticket, you could land a better deal then.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) with American Airlines?
Search for cheap American Airlines flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA) one to three months ahead of your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does American Airlines fly nonstop from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Use our "Nonstop" filter when looking for direct American Airlines flights from IAH to DCA. It's also a good way to compare other airlines offering the same nonstop route.
What is the earliest American Airlines flight from IAH to DCA?
Find American Airlines's earliest flights from IAH to DCA by using our "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does American Airlines fly into in Washington?
Ronald Reagan Washington National Airport (DCA) is the primary Washington hub for American Airlines flights from George Bush Intercontinental Airport (IAH).
Can I change or cancel my American Airlines flight from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
In most cases, you can modify or cancel your flight, although there may be additional charges if you booked over 24 hours ago. Need to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you need to adjust your plans. To update your booking, head to "Trips," select your flight and click on "Manage Booking" for more information.

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