$79 Cheap United flights Denver (DEN) to Houston (IAH)

View $79 flight on Tue, Nov 18, 2025Opens in a new window

$79 Cheap United flights Denver (DEN) to Houston (IAH)

Prices were available within the past 7 days and start at $79 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 11 - Wed, Nov 19
DEN
Denver
IAH
Houston
$157 Roundtrip, found 1 hour ago
$157
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 11 from Denver to Houston, returning Wed, Nov 19, priced at $157 found 1 hour ago
Flights from Denver (DEN) to Houston (IAH)
Origin airport
Denver Intl.
Destination airport
George Bush Intercontinental
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
861 mi
Average flight time
3 hours 25 mins

Frequently asked questions

How much is a United Airlines flight from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from $157 from DEN to IAH. Affordable one-way fares from $79 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to IAH with United Airlines?
November is one of the least expensive months to jet away to Houston with United Airlines. You could also find great prices on return and one-way fares in February.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) with United Airlines?
Search for cheap United Airlines flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)?
United Airlines operates direct flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH), with 70 weekly departures. Just apply the "Nonstop" and "Airline" filters during your search on Expedia to find all direct United Airlines flights to IAH.
How long does it take to fly from DEN to IAH with United Airlines?
From takeoff till touchdown, a direct United Airlines flight from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) typically takes 2h 30m.
Which day of the week has the most United Airlines flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)?
United Airlines has the most flights from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) on Thursday. With up to 10 daily departures, you'll get the most flexibility and choice on this day.
What is the earliest United Airlines flight from DEN to IAH?
The earliest flight from DEN to IAH with United Airlines leaves at 5:00AM UTC-7. You'll touch down at 8:31AM UTC-6. The final United Airlines flight of the day takes off at 8:33PM UTC-7 and arrives at 11:59PM UTC-6. With 20% fewer cancellations for morning and mid-morning departures, setting off early is generally the wisest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Houston?
Many United Airlines flights from Denver Intl. Airport (DEN) to Houston land at George Bush Intercontinental Airport (IAH). This is the airline's main gateway here. It's worth exploring Expedia for flights to nearby airports such as William P. Hobby Airport (HOU), as fares may be lower.
Why fly with United Airlines from DEN to IAH?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to jet off from DEN to IAH with United Airlines. Plus, when you sign up to our One Key™ program, you can earn OneKeyCash™* on top of any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)?
For the Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH) route, United Airlines typically operates Airbus A321neo and Boeing 777 planes. Don't forget that last-minute changes can occur for operational needs, meaning your flight may be on another aircraft.
Can I change or cancel my United Airlines flight from Denver Intl. Airport (DEN) to George Bush Intercontinental Airport (IAH)?
It's usually possible to cancel or modify your flight, although additional fees may apply if you booked over 24 hours ago. Prefer to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you have to revise your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for further information.

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