IAH - DEN

$77 Find Cheap Flights from Houston George Bush Airport to Denver - Compare and Save

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Everything you should know

Cheapest round-trip
$118
Typical prices: $134-$309
Frontier
Fri 10/19Mon 10/22
IAH - DEN • Non-stop
Cheapest one-way
$77
Typical prices: $100-$265
Frontier
Fri 11/2
IAH - DEN • Non-stop
Nonstop flights
You can fly direct with United Airlines and Frontier. Average duration is 2h 42m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 9 weeks in advance save around 54% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $236 (round-trip)
Shortest trip • 4h 36m (one-way)
Insights
Insights
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Expert advice
Flight Deals

Cheap Flights from George Bush Intcntl to Denver (IAH-DEN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from George Bush Intcntl to Denver

Mon, Oct 19 - Thu, Oct 22
Frontier Logo
10:40 pm - 12:18 amIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 38mnonstop
Frontier Logo
9:12 pm - 12:40 amDEN  Denver Intl-IAH Houston George Bush Intcntl
2h 28mnonstop
$118Frontier
Wed, Nov 11 - Wed, Nov 18
Frontier Logo
9:43 pm - 11:22 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 39mnonstop
Frontier Logo
6:31 pm - 7:23 amDEN  Denver Intl-IAH Houston George Bush Intcntl
11h 52m1 stop Atlanta Hartsfield-Jackson
$124Frontier
Wed, Nov 4 - Wed, Nov 18
Frontier Logo
6:40 am - 8:20 amIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 40mnonstop
Frontier Logo
10:41 am - 9:53 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
10h 12m1 stop Atlanta Hartsfield-Jackson
$125Frontier
Wed, Nov 11 - Wed, Nov 18
Frontier Logo
9:43 pm - 11:22 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 39mnonstop
Frontier Logo
10:41 am - 9:53 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
10h 12m1 stop Atlanta Hartsfield-Jackson
$125Frontier
Mon, Nov 2 - Thu, Nov 5
United Airlines Logo
9:52 pm - 11:31 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 39mnonstop
United Airlines Logo
7:25 pm - 10:54 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
2h 29mnonstop
$203United Airlines
Wed, Nov 11 - Sat, Nov 14
United Airlines Logo
9:52 pm - 11:30 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 38mnonstop
United Airlines Logo
11:35 am - 3:08 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
2h 33mnonstop
$203United Airlines
Wed, Dec 9 - Sat, Dec 12
United Airlines Logo
7:20 am - 8:59 amIAH  Houston George Bush Intcntl-DEN Denver Intl
2h 39mnonstop
United Airlines Logo
5:31 pm - 9:00 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
2h 29mnonstop
$203United Airlines
Tue, Nov 3 - Sat, Nov 7
Multiple Airlines Logo
8:21 pm - 3:53 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
20h 32m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
Multiple Airlines Logo
10:00 am - 9:53 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
10h 53m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$213Multiple Airlines
Wed, Nov 4 - Sat, Nov 7
Multiple Airlines Logo
6:05 am - 3:53 pmIAH  Houston George Bush Intcntl-DEN Denver Intl
10h 48m2 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth
Multiple Airlines Logo
10:00 am - 9:53 pmDEN  Denver Intl-IAH Houston George Bush Intcntl
10h 53m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson
$220Multiple Airlines
Thu, Dec 10 - Wed, Dec 16
Delta Logo
7:20 am - 11:59 amIAH  Houston George Bush Intcntl-DEN Denver Intl
5h 39m1 stop Salt Lake City
Delta Logo
2:31 pm - 12:02 amDEN  Denver Intl-IAH Houston George Bush Intcntl
8h 31m1 stop Atlanta Hartsfield-Jackson
$223Delta
Booking Insights

Price, demand and travel trends for Houston George Bush Intcntl Airport to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Houston George Bush Intcntl Airport to Denver?

Round-trip flights from Houston George Bush Intcntl Airport to Denver typically range from $134 to $309. The lowest price found in the past 5 days was $118, on Frontier.

What's the cheapest day of the week to fly from Houston George Bush Intcntl Airport to Denver?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Houston George Bush Intcntl Airport to Denver. It’s 12% cheaper than the average day, while Sunday is the most expensive, with prices 26% higher.

What’s the cheapest month to fly from Houston George Bush Intcntl Airport to Denver?

•February is the cheapest month to fly from Houston George Bush Intcntl Airport to Denver at $149 round-trip.
•June ($254) and March ($252) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 70% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Houston George Bush Intcntl Airport to Denver the cheapest?

Flights from Houston George Bush Intcntl Airport to Denver are cheapest 9 weeks before departure. Booking in this window typically costs about 54% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from George Bush Intcntl to Denver

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Houston George Bush Intcntl Airport to Denver flights

Low season

September

Cheapest flight

$77
Beat the crowds with an average 32% drop in travelers.
The most popular month to fly with an average 1% increase in travelers.
One-way flight from Houston George Bush Intcntl Airport to Denver

When to book flights from George Bush Intcntl to Denver

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Houston George Bush Intcntl Airport to Denver flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Houston George Bush Intcntl Airport to Denver?

    These are the earliest and latest flight times available from Houston George Bush Intcntl Airport to Denver:

    • Earliest: departs at 5:00 am and lands at 7:42 am
    • Latest: departs at 11:55 pm and lands at 2:37 am.

    The flight takes about 2h 42m.

  • What cabin classes can I book on flights from Houston George Bush Intcntl Airport to Denver?

    Four cabin classes are available on flights from Houston George Bush Intcntl Airport to Denver:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Houston George Bush Intcntl Airport to Denver?

    A nonstop flight from Houston George Bush Intcntl Airport to Denver takes 2h 42m, covering 861 miles.

  • Do I need a passport to fly from Houston George Bush Intcntl Airport to Denver?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Houston George Bush Intcntl Airport to Denver flight?

    Round-trip flights from Houston George Bush Intcntl Airport to Denver range from $134 to $309, with an average of $210 over the past 12 months. Anything below $134 counts as a good deal.

  • How expensive are last-minute Houston George Bush Intcntl Airport to Denver flights?

    Last-minute fares on this route (booked within two weeks of departure) run 54% above the $210 route average. Book 9 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Houston George Bush Intcntl Airport to Denver?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $208 round-trip, compared to $236 via a layover through Ontario (ONT).

  • What is the standard checked-bag allowance on flights from Houston George Bush Intcntl Airport to Denver?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Houston George Bush Intcntl Airport to Denver?

    The Airbus A321neo family is used most often on this route, operated mainly by United Airlines and Frontier. Other aircraft seen on the route include Airbus A320neo variants.

  • How are flight departures from Houston George Bush Intcntl Airport to Denver spread across the day?

    Morning is the busiest departure period on Houston George Bush Intcntl Airport to Denver flights, with 47% of flights leaving in that window. Afternoon departures account for 23%, evening flights for 15%, and night flights for 15%.

  • How are flight prices from Houston George Bush Intcntl Airport to Denver looking right now?

    One-way fares from Houston George Bush Intcntl Airport to Denver are currently lower than usual. Average one-way flight prices are about $95, which is 46% below the typical average for this route.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Ace
    • Europcar
    • NU Car
    • Hertz

  • Which airports can I use when flying from Houston George Bush Intcntl Airport to Denver?

    Flights from Houston George Bush Intcntl Airport to Denver usually depart from Houston George Bush Intcntl (IAH) and arrive at Denver Intl (DEN).

  • What time of day has the fewest delays on flights from Houston George Bush Intcntl Airport to Denver?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed from Houston George Bush Intcntl Airport to Denver?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Houston George Bush Intcntl Airport to Denver route, 12% of flights were delayed in the past 3 months, with delays averaging 2h 30m.

  • Which airports do connecting flights from Houston George Bush Intcntl Airport to Denver pass through?

    One-stop flights from Houston George Bush Intcntl Airport to Denver most commonly connect through:

    • Dallas/Fort Worth (DFW) - 37% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 13% of one-stop connections
    • Orlando (MCO) - 13% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Houston George Bush Intcntl Airport to Denver?

    Yes. Flexible dates can save you up to 31% on flights from Houston George Bush Intcntl Airport to Denver. Saturday is the cheapest departure day at $186 round-trip on average, while Sunday is the most expensive at $266, a difference of $80.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Houston George Bush Intcntl Airport to Denver?

    2 airlines operate flights between Houston George Bush Intcntl Airport and Denver. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Frontier

  • How much time can I save by choosing a different layover airport from Houston George Bush Intcntl Airport to Denver?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 4h 36m, compared with 5h 59m via Minneapolis St Paul (MSP) and 6h 48m via Ontario (ONT).

  • What is the time difference between Houston George Bush Intcntl Airport and Denver?

    Denver is 1 hour behind Houston George Bush Intcntl Airport (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Houston George Bush Intcntl Airport to Denver flights?

    Among airlines operating Houston George Bush Intcntl Airport to Denver flights:

    • Frontier: offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Houston George Bush Intcntl Airport to Denver flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Does Denver International Airport have an airport hotel?

    Yes. For those looking to stay at an airport hotel, book your stay at the Westin Hotel at Denver International Airport. The 519-room hotel with a conference center is just steps away from the main terminal. It is located just one level above the escalator at the Transit Center. It is a good place for business travelers to hold meetings and conferences, and the hotel also has an onsite restaurant.

  • Which family services are available at George Bush Intercontinental Airport?

    Baby care facilities are provided in most restrooms (gents, ladies, and family). The terminals are also dotted with nurseries. Private spaces are furnished with baby cots and rocking chairs where mothers can lull their babies to sleep. There are also lactation rooms at IAH, a private place where mothers can breastfeed their babies.

  • What are accessible services available at George Bush Intercontinental Airport?

    IAH is a barrier-free airport. Passengers with reduced mobility can access all areas using the elevators and ramps provided. There are reserved parking spots at the garages as well. Tactile guide paths and braille signage are in place to help the visually impaired safely navigate the airport. TTY telephones, visual paging, and white courtesy phones are also provided at IAD for the hearing impaired. The same white courtesy phones can be used to request assistance from airport staff.

  • What are the transport options from Denver International Airport?

    The most convenient way of getting downtown is taking the Regional Transportation (RTD) trains. You can get these trains from the Denver Airport Station, which departs every 15min. The Regional Transportation Department (RTD) also provides buses from the airport to downtown, and you’ll find them at the station too. There are charter buses offered at the airport to locations around Colorado, and you can reserve your space at the ground transportation area. Metered taxis are also available at the airport, and a flat rate applies to downtown, Boulder, and Denver Tech Center. Car rentals are an option too, and Avis, Hertz, Budget, and National have counters at DEN.

Your guide to booking Houston George Bush Intcntl Airport to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $186, about $80 less than Sunday fares (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 9 weeks before you fly. On this route, that window historically saves about 54% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Houston George Bush Intcntl Airport to Denver trip for February. Fares historically average $149 round-trip in that month - typically $105 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 88% of United Airlines flights from Houston George Bush Intcntl Airport to Denver arrived on time, slightly above the route average of 88%. When flights on this route arrive late, they're delayed by an average of 2h 30m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.

    • The Westin Denver International Airport
  • Houston George Bush International Airport (IAH) is a massive airport consisting of five terminals. The airport has all terminals interconnected by a subway system, landside, and a skyway airside for easy movement around the airport complex.
  • Pets are welcome at IAH as long as they remain within their carriers as TSA requires. The airport has four designated pet relief areas, and you’ll find them at Terminals B, C, D, and E, post-security.
  • Around 654 kg of carbon is emitted per passenger on flights from Houston to Denver. However, you can fly more sustainably with Frontier Airlines, United Airlines, and Southwest Airlines. These airlines emit 67%, 62%, and 59% less carbon per passenger on flights from IAH to Denver International Airport (DEN).
  • Fly with American Airlines, United Airlines, or Delta to relax and unwind at their airline lounges at Denver International Airport (DEN) after your flight. These airlines have pay-per-use lounges at DEN that admittance requires your flight ticket and a one-time fee.
  • If you have some time to pass before your flight, check out Xpress Spa in Terminal A at IAH. This establishment offers spa services that take less than 30min, and you’ll find them near Gate 17.

Prefer to fly direct from Houston George Bush Airport to Denver?

 
Find which airlines fly direct from Houston George Bush Intcntl Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Houston George Bush Intcntl to Denver Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

Direct returns

Denver Intl to Houston George Bush Intcntl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

Frontier,United Airlines

Frontier,United Airlines

Wednesday

Frontier,United Airlines

Frontier,United Airlines

Thursday

Frontier,United Airlines

Frontier,United Airlines

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Frontier,United Airlines

Frontier,United Airlines

Sunday

Frontier,United Airlines

Frontier,United Airlines

See more direct flights

More options for your flight from George Bush Intcntl to Denver

Complete your trip to Denver with a hotel stay or car rental