S$162 Cheap Flights from Houston to Washington

View S$162 flight on Tue, 26 Aug, 2025Opens in a new window

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

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Cheap Flights from Houston to Washington (IAH-IAD)

Prices were available within the past 7 days and start at S$162 for one-way flights and S$323 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 10 Sep - Wed, 17 Sep
IAH
Houston
IAD
Washington
S$323 Return, found 6 days ago
S$323
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Sep from Houston to Washington, returning Wed, 17 Sep, priced at S$323 found 6 days ago
Delta
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$324 Return, found 4 days ago
S$324
Return
found 4 days ago
Select Delta flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$324 found 4 days ago
Delta
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$380 Return, found 4 days ago
S$380
Return
found 4 days ago
Select Delta flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$380 found 4 days ago
United
Wed, 10 Sep - Wed, 17 Sep
IAH
Houston
IAD
Washington
S$387 Return, found 6 days ago
S$387
Return
found 6 days ago
Select United flight, departing Wed, 10 Sep from Houston to Washington, returning Wed, 17 Sep, priced at S$387 found 6 days ago
Delta
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$388 Return, found 4 days ago
S$388
Return
found 4 days ago
Select Delta flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$388 found 4 days ago
Delta
Wed, 10 Sep - Wed, 17 Sep
IAH
Houston
IAD
Washington
S$393 Return, found 6 days ago
S$393
Return
found 6 days ago
Select Delta flight, departing Wed, 10 Sep from Houston to Washington, returning Wed, 17 Sep, priced at S$393 found 6 days ago
United
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$401 Return, found 4 days ago
S$401
Return
found 4 days ago
Select United flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$401 found 4 days ago
Delta
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$437 Return, found 4 days ago
S$437
Return
found 4 days ago
Select Delta flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$437 found 4 days ago
Delta
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$443 Return, found 4 days ago
S$443
Return
found 4 days ago
Select Delta flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$443 found 4 days ago
American Airlines
Sat, 9 Aug - Sat, 16 Aug
IAH
Houston
IAD
Washington
S$483 Return, found 4 days ago
S$483
Return
found 4 days ago
Select American Airlines flight, departing Sat, 9 Aug from Houston to Washington, returning Sat, 16 Aug, priced at S$483 found 4 days ago

Find the cheapest month to fly from Houston (IAH) to Washington (IAD)

March is typically the cheapest month to fly

From S$159 - S$373 per traveller.

Graph displaying average flight prices per month

Houston to Washington route information
Origin airport
George Bush Intercontinental
Destination airport
Washington Dulles Intl.
Return price
S$323
Distance
1903 km
Average flight time
6 hours 26 mins

Flights from Houston to Chantilly

There are several airlines that operate frequent flights from Houston (IAH) to Washington D.C. (IAD) including

The earliest flight leaves George Bush Intercontinental Airport at 07:25 and arrives at Washington Dulles Intl. Airport at 11:18. The last flight of the day departs Houston at 19:38 and arrives at Washington D.C. at 23:41.

The flight distance from Houston to Washington D.C. is about 1923 km, the shortest flight is 02 hours 48 minutes with United Airlines."

Expedia lets you search across the largest number of airlines and Chantilly flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Houston Chantilly flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Houston to Chantilly trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Chantilly flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Houston to Chantilly with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from Houston Airport to IAD?
Start packing your bags, because round-trip flights between George Bush Intercontinental Airport (IAH) and IAD start from S$323. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAH to IAD?
Most flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Houston Airport to IAD that have flexible change policies?
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 George Bush Intercontinental Airport (IAH) to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Houston Airport to Washington Dulles Intl. Airport (IAD)?
It's around 1,900 kilometres between Houston Airport and Washington Dulles Intl. Airport (IAD), so expect to be in your seat for a while. Keep yourself occupied by packing things like your e-reader or the latest bestseller.
Which airlines fly direct from Houston Airport to Washington Dulles Intl. Airport (IAD)?
Flying directly from Houston Airport to IAD is simple with United Airlines (UA). This popular carrier offers 121 flights each month.
Are George Bush Intercontinental Airport (IAH) to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to nab an awesome last-minute deal from Houston Airport to IAD, but it's also possible to miss out entirely! As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can be sure you're always seeing the latest offers.

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