S$323 Cheap Flights from Houston to Washington

View S$323 flight on Sun, 23 Nov, 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$323 for one-way flights and S$811 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$811 Return, found 10 hours ago
S$811
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$811 found 10 hours ago
United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$824 Return, found 10 hours ago
S$824
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$824 found 10 hours ago
American Airlines
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$825 Return, found 10 hours ago
S$825
Return
found 10 hours ago
Select American Airlines flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$825 found 10 hours ago
Delta
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$832 Return, found 10 hours ago
S$832
Return
found 10 hours ago
Select Delta flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$832 found 10 hours ago
United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$851 Return, found 10 hours ago
S$851
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$851 found 10 hours ago
United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$853 Return, found 10 hours ago
S$853
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$853 found 10 hours ago
United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$864 Return, found 10 hours ago
S$864
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$864 found 10 hours ago
United
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$866 Return, found 10 hours ago
S$866
Return
found 10 hours ago
Select United flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$866 found 10 hours ago
Delta
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$870 Return, found 10 hours ago
S$870
Return
found 10 hours ago
Select Delta flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$870 found 10 hours ago
Delta
Sun, 23 Nov - Sun, 30 Nov
IAH
Houston
IAD
Washington
S$873 Return, found 10 hours ago
S$873
Return
found 10 hours ago
Select Delta flight, departing Sun, 23 Nov from Houston to Washington, returning Sun, 30 Nov, priced at S$873 found 10 hours ago

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

March is typically the cheapest month to fly

From S$163 - S$512 per traveller.

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$811. 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.

Travel information

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, United
Return price
S$811
Distance
1903 km
Average flight time
5 hours 24 mins

Book with confidence

Book with confidence

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!

Flights from Houston to Chantilly

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Houston Airports

Houston

George Bush Intercontinental to Washington
S$810.80
*Available to Expedia members.