Cheap Flights from Houston (IAH) to Washington (WAS)

The lowest price advertised for a round-trip flight from IAH to Washington, DC (WAS-All Airports) is AU$311. But you better get moving. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

We understand that your situation can change unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.

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 Houston Airport to Washington, DC (WAS-All Airports) flights, you'll see a "no change fees" filter for you to select.

It's around 1 950 kilometres from George Bush Intercontinental Airport (IAH) to Washington, DC (WAS-All Airports), so you'll be in your seat for a while. Keep yourself occupied with things like a magazine or the latest bestseller.

United Airlines (UA) will fly you from Houston Airport to Washington, DC (WAS-All Airports) safely and comfortably. Take your pick of 330 flights each month on this route.

Late planners can sometimes score a bargain, with some super cheap fares from Houston Airport to Washington, DC (WAS-All Airports) cropping up a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines advertise prices so far in advance.