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

View $79 flight on Thu, Oct 9, 2025Opens in a new window

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

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
Thu, Oct 2 - Tue, Oct 7
IAH
Houston
DEN
Denver
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Thu, Oct 2 from Houston to Denver, returning Tue, Oct 7, priced at $157 just found
United
Tue, Aug 5 - Mon, Aug 11
IAH
Houston
DEN
Denver
$162 Roundtrip, just found
$162
Roundtrip
just found
Select United flight, departing Tue, Aug 5 from Houston to Denver, returning Mon, Aug 11, priced at $162 just found
United
Wed, Sep 24 - Mon, Sep 29
IAH
Houston
DEN
Denver
$167 Roundtrip, just found
$167
Roundtrip
just found
Select United flight, departing Wed, Sep 24 from Houston to Denver, returning Mon, Sep 29, priced at $167 just found
United
Sat, Sep 20 - Thu, Sep 25
IAH
Houston
DEN
Denver
$168 Roundtrip, just found
$168
Roundtrip
just found
Select United flight, departing Sat, Sep 20 from Houston to Denver, returning Thu, Sep 25, priced at $168 just found
United
Wed, Sep 24 - Mon, Sep 29
IAH
Houston
DEN
Denver
$177 Roundtrip, just found
$177
Roundtrip
just found
Select United flight, departing Wed, Sep 24 from Houston to Denver, returning Mon, Sep 29, priced at $177 just found
United
Thu, Nov 6 - Mon, Nov 10
IAH
Houston
DEN
Denver
$178 Roundtrip, found 3 hours ago
$178
Roundtrip
found 3 hours ago
Select United flight, departing Thu, Nov 6 from Houston to Denver, returning Mon, Nov 10, priced at $178 found 3 hours ago
Flights from Houston (IAH) to Denver (DEN)
Origin airport
George Bush Intercontinental
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
861 mi
Average flight time
1 hour 37 mins

Frequently asked questions

How much is a United Airlines flight from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN)?
Scoring cheap one-way United Airlines flights from IAH to DEN from $79 on Expedia is a breeze --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares from $157 for your next adventure.**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 IAH to DEN with United Airlines?
January is one of the cheapest months to travel to Denver with United Airlines. You could also find great deals on one-way and return fares in November.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN) with United Airlines?
For cheap United Airlines fares from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall price. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**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 George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN)?
United Airlines has direct flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN), with 70 weekly departures. Just apply the "Nonstop" and "Airline" filters while searching on Expedia to find all direct United Airlines flights to DEN.
How long does it take to fly from IAH to DEN with United Airlines?
The journey time for a direct United Airlines flight from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN) takes around 2h 43m.
Which day of the week has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN)?
Thursday has the most United Airlines flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN). With 10 daily departures, this is the best day of the week to find something that will suit your schedule.
What is the earliest United Airlines flight from IAH to DEN?
Taking off from IAH at 7:20AM UTC-6, the earliest United Airlines flight to DEN lands at 9:05AM UTC-7. Flying early means you're less likely to encounter delays.* Not an early riser? The last United Airlines flight from IAH to DEN departs at 10:07PM UTC-6 and touches down at 11:44PM UTC-7.*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 Denver?
United Airlines flights from George Bush Intercontinental Airport (IAH) to Denver land at Denver Intl. Airport (DEN). This is the main entry point here.
Why fly with United Airlines from IAH to DEN?
With a rewarding loyalty program, United Airlines is a top pick for many passengers journeying from IAH to DEN. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*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 George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN)?
United Airlines generally uses Airbus A321neo planes for flights from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN). This carrier also operates the Boeing 737-900 on this route. Remember that aircraft type can change due to operational demands, so the plane you catch might be different on your travel date.
Can I change or cancel my United Airlines flight from George Bush Intercontinental Airport (IAH) to Denver Intl. Airport (DEN)?
You can usually cancel or reschedule your flight, although there may be additional fees if your booking was made over 24 hours ago. Need 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 alter your plans. To update your booking, visit "Trips," select your flight and click on "Manage Booking" for more information.

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