AED1,540 Cheap Flights from Houston (IAH) to Washington (DCA)

View AED1,540 flight on Sun, 5 October 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 AED1,540 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How long does it take to fly from Houston Airport to National Airport?
United Airlines operates a direct flight heading off from George Bush Intercontinental Airport (IAH) at 6:05PM and reaching Ronald Reagan Washington National Airport (DCA) at 10:02PM — a flight duration of 2 hours and 57 minutes. Choose your perfect seat, bring your headphones to keep you busy and the time will race by.
Is it cheaper to buy a plane ticket from Houston Airport to National Airport last minute?
When it comes to booking your flights, it's better to be prepared. While you could find a last-minute deal on a Houston Airport to DCA flight, tickets usually don't get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international trips it's between three and four months.
What airline has the least delays from Houston Airport to National Airport?
Head off with United Airlines from Houston Airport to Ronald Reagan Washington National Airport (DCA) and you're more likely to arrive at the time on your boarding card. This airline leads the way on this route, with an on-time arrival score of 66%. If there is a disruption to your flight, the Expedia App will help you stay updated. Download it and you'll get immediate trip updates, from flight delays to any gate number changes.
What airports do you fly into for Washington from Houston?
Ronald Reagan Washington National Airport (DCA), Washington Dulles Intl. Airport (IAD) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are your options when jetting from Houston to Washington. Around 6 kilometers south of downtown Washington, Ronald Reagan Washington National Airport (DCA) is the city's principal entry point. Keep in mind things such as flight departure and arrival times and the distance to your hotel before picking your airport. White House and United States Capitol are two fantastic attractions to put on your must-see list when you arrive at your destination.
What are the most popular departure times for flights from George Bush Intercontinental Airport (IAH) to Ronald Reagan Washington National Airport (DCA)?
Between 4:00 PM - 5:00 PM is when you'll find the most United Airlines flights departing Houston Airport to Ronald Reagan Washington National Airport (DCA). Our top tip? Choose a flight that departs in the morning. With air traffic yet to build up around airports, your chances of catching a delay-free flight are higher.
Can I change the date of my flight from IAH to DCA?
Easily make changes to your IAH to National Airport journey through the Expedia Trips portal. But before you make any adjustments, check the fare conditions in your itinerary to learn what the carrier will allow you to do and whether fees apply. Some carriers charge a change fee per person, plus any difference in fare prices. But if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also find your way to our Customer Service portal for more info and to connect with our Virtual Agent.

Travel information

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Ronald Reagan Washington National
Distance
1929 km
Average flight time
4 hours 4 mins

Book with confidence

Book with confidence

Houston to Washington Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Houston to Washington offer the perfect respite. Not only does exploring Washington provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Houston to Washington may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from IAH to DCA today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Washington are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Washington more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Washington is AED1,540 now!

Houston to Washington Flights

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