CA $225 Cheap Flights from Washington (IAD) to Houston (IAH)

Popular airlines from Washington Dulles International Airport (IAD) to George Bush Intercontinental Airport (IAH)

  • Be in the know

    Get alerts if flight prices drop or rise*
  • Book smarter

    Save up to 30% on select hotels after you book a flight*
  • Earn twice

    Earn your airline miles on top of our rewards

Cheap flights from Washington (IAD) to Houston (IAH)

Prices were available within the past 7 days and start at CA $225 for one-way flights and CA $436 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
Delta
Delta
Delta
Delta
Delta
American Airlines
Delta
United

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.

Alternative airports near Houston

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

Frequently asked questions

How much is a flight from Washington Dulles Intl. Airport (IAD) to IAH?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight between Washington Dulles Intl. Airport (IAD) and George Bush Intercontinental Airport (IAH) was CA $436. Cheap tickets don't wait forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to IAH?
Every air carrier has different terms and conditions. If you decide to cancel your vacation, visit our Customer Service Portal.
How do I find cheap flights from IAD to IAH that have flexible change policies?
Many carriers will allow you to move your flight without charging a fee. All you pay is the difference in the ticket price. When searching for Washington Dulles Intl. Airport (IAD) to IAH flights, you'll see a "No change fees" box for you to tick.
How many hours is the flight from Washington Dulles Intl. Airport (IAD) to IAH?
Lasting around 3 hours and 39 minutes, the flight between Dulles Intl. Airport and IAH is a good opportunity to do some last-minute planning. Why not use some of this time to read up on what to do in Houston?
How far is the flight from IAD to Houston Airport?
It's around 1,900 kilometres from Chantilly to Houston, so you'll be in your seat for a while. Keep yourself occupied with things like playing cards (if you're travelling with friends) or a gripping book.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Houston Airport?
Flying nonstop from IAD to George Bush Intercontinental Airport (IAH) is simple with United Airlines (UA). This popular airline operates 121 flights each month.
Are Dulles Intl. Airport to Houston Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up a great last-minute deal from IAD to IAH, but it's also possible to miss out altogether! As many airlines publish prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest easy knowing you're always seeing the latest offers.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines
Roundtrip price
CA $436
Distance
1903 km
Average flight time
4 hours 53 mins

Book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.