฿5,335 Cheap Flights from Washington (DCA) to Houston (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 . Make your booking ASAP to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.

Every airline has its own set of terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.

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.

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.

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.

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.