$152 Cheap United flights from Washington to Houston (IAD to IAH)

Find The Best Day To Fly from Washington to Houston

Amazing United IAD to IAH Flight Deals

The cheapest flights to George Bush Intercontinental found within the past 7 days were $219 round trip and $152 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Dec 10 - Tue, Dec 15
IAD
Washington
IAH
Houston
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select United flight, departing Thu, Dec 10 from Washington to Houston, returning Tue, Dec 15, priced at $219 found 1 day ago
Wed, Sep 30 - Mon, Oct 26
IAD
Washington
IAH
Houston
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 30 from Washington to Houston, returning Mon, Oct 26, priced at $222 found 1 day ago

IAH From IAD Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Holiday Inn Express & Suites Houston IAH - Beltway 8 by IHG

Holiday Inn Express & Suites Houston IAH - Beltway 8 by IHG

2.5 out of 5
Price was $461, price is now $374 per person
$374
per person
Oct 31 - Nov 4
found 1 hour ago
Roundtrip non-stop flight included
Washington (DCA) to Houston (IAH)
Houston Marriott North

Houston Marriott North

3.5 out of 5
Price was $554, price is now $442 per person
$442
per person
Oct 31 - Nov 4
found 1 hour ago
Roundtrip non-stop flight included
Washington (DCA) to Houston (IAH)
Staybridge Suites Houston IAH - Beltway 8 by IHG

Staybridge Suites Houston IAH - Beltway 8 by IHG

3 out of 5
Price was $501, price is now $408 per person
$408
per person
Oct 31 - Nov 4
found 1 hour ago
Roundtrip non-stop flight included
Washington (DCA) to Houston (IAH)
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Frequently asked questions

Can I catch a flight from Dulles Intl. Airport to Houston Airport right now?
Ensure you visit our Covid-19 Travel Advisor to find out if there are any present travel advice reports and quarantine requirements in effect in IAH when flying in from Washington Dulles Intl. Airport (IAD).
What terminal is United Airlines at IAD?
If you're traveling from Washington Dulles Intl. Airport (IAD) to Houston Airport, you'll probably be exiting the plane at terminal C. We can't say for certain which terminal you'll be heading off from — you'll need to consult your airline.
Are there United Airlines non-stop flights from IAD to IAH?
You'll be happy to hear you can fly straight from IAD to IAH with United Airlines and avoid stopovers. The less time you spend traveling to your destination, the more time you'll have for new experiences.
How long is a United Airlines flight from IAD to IAH?
Watch your favorite TV series, listen to a podcast or just recline your seat and take it easy. Whatever interests you, you'll need to find a way to amuse yourself during the 4 hours and 31 minutes that it takes to fly from Washington Dulles Intl. Airport (IAD) to Houston Airport with United Airlines.
What type of aircraft does United Airlines fly from IAD to IAH?
When you cruise the skies between IAD and IAH with United Airlines, you'll typically be doing it aboard the Boeing 737-800. The carrier also operates the Boeing 737-900 on this route.
How many direct and indirect flights does United Airlines fly from IAD to IAH?
If you need to book a jaunt from IAD to IAH, you can select from approximately 6 United Airlines flights daily.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Houston Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.
United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Houston

Houston Airport Marriott at George Bush Intercontinental

Houston Airport Marriott at George Bush Intercontinental

3.5 out of 5
18700 John F Kennedy Blvd Houston TX
This hotel features a restaurant, an outdoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
Houston Airport Marriott at George Bush Intercontinental
La Quinta Inn & Suites by Wyndham Houston Bush IAH South

La Quinta Inn & Suites by Wyndham Houston Bush IAH South

3 out of 5
15510 JFK Blvd Houston TX
This hotel features an outdoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8/10 Very Good! (2,525 reviews)
"es un hotel económico el personal es muy amable el desayuno es bueno con servio de transporte al aeropuerto me alegro haber encontrado este lugar lo único que no pudimos disfrutar fue de la piscina porque estaba fuera de servicio"

Reviewed on Aug 15, 2026

La Quinta Inn & Suites by Wyndham Houston Bush IAH South
Ramada by Wyndham Houston Intercontinental Airport East

Ramada by Wyndham Houston Intercontinental Airport East

3.5 out of 5
6115 Will Clayton Parkway Humble TX
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
7.6/10 Good! (2,242 reviews)
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Reviewed on Aug 15, 2026

Ramada by Wyndham Houston Intercontinental Airport East
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.