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IAH - DEN

Find cheap flights from Houston George Bush Airport to Denver from $29

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to Denver departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 4/18
Thu 4/25

Search hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Denver, as well as popular online travel agencies
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from George Bush Intcntl to Denver

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
9:53 am - 11:36 amIAH-DEN
2h 43mnonstop
5:45 am - 9:13 amDEN-IAH
2h 28mnonstop
$58Frontier
Find Deal
Tue, Apr 16 - Tue, Apr 23
10:50 pm - 12:31 amIAH-DEN
2h 41mnonstop
5:25 am - 8:53 amDEN-IAH
2h 28mnonstop
$59Frontier
Find Deal
Sat, Apr 13 - Tue, Apr 16
10:13 am - 11:55 amIAH-DEN
2h 42mnonstop
6:24 pm - 9:59 pmDEN-IAH
2h 35mnonstop
$60Frontier
Find Deal
Tue, May 7 - Sat, May 18
10:13 am - 11:55 amIAH-DEN
2h 42mnonstop
5:15 am - 8:43 amDEN-IAH
2h 28mnonstop
$66Frontier
Find Deal
Tue, May 7 - Wed, May 8
9:29 am - 11:12 amIAH-DEN
2h 43mnonstop
5:45 am - 9:13 amDEN-IAH
2h 28mnonstop
$68Frontier
Find Deal
Thu, Apr 25 - Tue, Apr 30
9:53 am - 11:36 amIAH-DEN
2h 43mnonstop
12:53 am - 9:18 amDEN-IAH
7h 25m1 stop
Tue, Apr 16 - Mon, Apr 22
11:15 am - 11:56 pmIAH-DEN
13h 41m1 stop
5:45 am - 9:13 amDEN-IAH
2h 28mnonstop
Tue, Apr 16 - Tue, Apr 23
10:47 am - 5:05 pmIAH-DEN
7h 18m1 stop
12:30 am - 8:14 amDEN-IAH
6h 44m1 stop
$196Delta
Find Deal
Tue, May 7 - Tue, May 7
6:20 pm - 11:10 pmIAH-DEN
5h 50m1 stop
5:24 am - 12:15 pmDEN-IAH
5h 51m1 stop
$198Delta
Find Deal
Fri, May 3 - Mon, May 6
8:25 pm - 11:56 pmIAH-DEN
4h 31m1 stop
9:16 am - 3:39 pmDEN-IAH
5h 23m1 stop
$208American Airlines
Find Deal
Fri, May 17 - Sun, May 19

Flights from George Bush Intcntl to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from George Bush Intcntl to Denver to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Houston George Bush Intcntl Airport to Denver clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Denver on a Tuesday and more expensive on a Sunday. On your return trip to Houston George Bush Airport, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Houston George Bush Intcntl Airport to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Houston George Bush Intcntl Airport to Denver is January, where tickets cost $106 on average. On the other hand, the most expensive months are July and March, where the average cost of tickets is $221 and $205 respectively.

How far in advance should I book a flight from Houston George Bush Intcntl Airport to Denver?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Houston George Bush Intcntl Airport to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Houston George Bush Intcntl Airport to Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 75 days before departure.

Which airlines provide the cheapest flights from Houston George Bush Airport to Denver?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Denver from Houston George Bush Airport were found on Frontier ($29) and Delta ($98), and the lowest round-trip tickets were found on Frontier ($58) and Delta ($196).

Which airlines fly most frequently between Houston George Bush Airport and Denver?

In normal times, United Airlines flies from Houston George Bush Airport to Denver up to 14 times per day, Southwest up to 5 times per day, and Frontier up to 2 times per day.

Which airlines fly non-stop between Houston George Bush Intcntl Airport and Denver?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Houston George Bush Intcntl Airport to Denver.
There are 3 airlines that fly nonstop from Houston George Bush Intcntl Airport to Denver. They are: Frontier, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $50 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Houston George Bush Intcntl Airport and Denver per day?

Each day, there are between 21 and 25 nonstop flights that take off from Houston George Bush Intcntl Airport and land in Denver, with an average flight time of 2h 37m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 157 flights. The most frequent day of departure is Thursday, when 16% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Houston George Bush Intcntl Airport and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Houston George Bush Airport to Denver take?

Direct flights take on average 2h 35m to travel the 861 miles between Houston George Bush Airport and Denver.

What’s the earliest departure time from Houston George Bush Airport to Denver?

Early birds can take the earliest flight from Houston George Bush Intcntl Airport at 5:00 am and will be landing in Denver at 6:37 am.

What’s the latest departure time from Houston George Bush Airport to Denver?

If you prefer to fly at night, the latest flight from Houston George Bush Intcntl Airport to Denver jets off at 11:00 pm and lands at 12:43 am.

Good to know

Low season

April

High season

December

Cheapest flight

$29
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Houston George Bush 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston George Bush Airport to Denver flights

  • 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.

  • What is the cheapest flight from Houston George Bush Intcntl Airport to Denver?

    In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Denver was $29 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between Houston George Bush Airport and Denver?

    No, a passport isn't needed to fly from Houston George Bush Airport to Denver. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Houston George Bush Airport to Denver?

    On your way to Denver, you’ll fly out from Houston George Bush Intcntl. You’ll be landing at Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Houston George Bush Airport to Denver?

    Alaska Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Houston George Bush Airport to Denver flight route.

  • Which aircraft models fly most regularly from Houston George Bush Airport to Denver?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Houston George Bush Airport to Denver flight route.

  • Which airline alliances offer flights from Houston George Bush Airport to Denver?

    Star Alliance is the only airline alliance operating flights between Houston George Bush Airport and Denver.

  • On which days can I fly direct from Houston George Bush Airport to Denver?

    There are nonstop flights from Houston George Bush Airport to Denver on a daily basis.

  • Which is the best airline for flights from Houston to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Houston to Denver are Delta and United Airlines. With an average price for the route of $332 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $298 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Houston George Bush Airport to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston George Bush Airport to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston George Bush Airport to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Houston George Bush Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston George Bush Airport to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Houston George Bush Airport with another airline. Booking your flights between Houston George Bush Airport and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston George Bush Airport to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from IAH to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $97 or less one-way and $150 or less round-trip.
  • 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.
See more tips

Prefer to fly non-stop from Houston George Bush Airport to Denver?

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

Nonstop departures

Houston George Bush Intcntl to Denver Intl

Monday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Tuesday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Wednesday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Thursday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Friday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Saturday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Sunday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

See more direct flights

Nonstop returns

Denver Intl to Houston George Bush Intcntl

Monday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Tuesday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Wednesday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Thursday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Friday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Saturday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

Sunday

Air Canada, Air New Zealand, Avianca, +4 more

Air Canada, Air New Zealand, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from George Bush Intcntl to Denver

Need help choosing which airline to fly with from George Bush Intcntl to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to KAYAK reviews.
8.0
DeltaOverall score based on 11551 reviews
86crew
81entertainment
79comfort
75food
81overall
82boarding
Airline reviews

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

Read more about Delta

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

MSP to Atlanta was much better than Atlanta to St. Kitts. Paid $180 each for myself and wife for Delta comfort from Atlanta to St. Kitts. Seats were more narrow and obviously old and worn out. Tailbone is killing me. Seat would not recline. Seats behind reclined and we were not an exit row or in front of an exit row. Entertainment did not work in that the movie jumped forward and back and there was no audio. The plug in the arm rest was loose. Flight attendant tried “resetting” the video for my seat but no good. She never checked back. Someone else near me had the same issue. Touch screen was unresponsive. No where near as comfortable as MSP to Atlanta flight. 3 plus hrs. flight time without the basic amenities and not even remotely close to comfortable but paid for Comfort plus. I will be very disappointed if I have the same on my return “Comfort Plus” flight St. Kitts to Atlanta. At the very least my wife and I should be refunded for round trip “Comfort Plus” charges. Please feel free to contact me directly for more details.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

I love the free wifi and headrest screens. I would consider Delta even more because of this but the seats aren't so great. The snacks aren't very good in my opinion. I bought a Bloody Mary and that was great! So just be comfortable with better snacks and the airline world will be yours.

Lisa the flight attendent was absolutely wonderful - I loved her energy and you could tell that this crew was amazing family - thank you for making our flight home to LA so very fun! Love and Sun Chips!

the entertainment for the flight from DAL-LGA was not available.

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

It was fine. Everything ran on time, crew was great.

Staff friendly and app worked really well. Modest delays were frustrating

They rerouted flight to LAX. Offered nothing but a 5 hr drive to SBP. No compensation. No regards to our healthy and safety.

Both flights were fine. I wish there was a little more legroom, but we got to where we needed to be on time, the crew did their job, and that’s really all that matters. We’ll fly United again.

Plane was so old it had cigarette butt trays in the seat

My previous flight was late and did not connect properly. The gate was closed and I missed this flight.

The flight was 6 hr late and then they blamed it on the weather. All of the other planes were coming and going fine.

Overall okay. Ipgrades ate worthless anymore. Wish I’d not been so loyal To them for so many years. Platinum many years. Gold for life. Usually 20th-30th on upgrade list.

Well, flight times cause some wait, but there were not times available and we understood. I didn't check any luggage, because it has become too expensive. I was able to add any extra items to my co-travellers check bags. [Luckily, this trip wasn't international.] Last, I hadn't flown AA domestically for a while, but partners and coworkers had warned me in advance that not all planes have monitors at every seat. Luckily, I was mostly prepared to use the in-flight entertainment and happy I was. The great: AA staff is always kind and comfort is way better than the budget airlines that I sometimes have to fly. I know my points and vouchers all expired over the last couple of years, but I still enjoy AA when I do fly with them. I also appreciate all of the locations we can go directly from pur home airport. Since we are traveling more now, I hope to take advantage.

Our gate number was changed but nobody alerted us until we tried to board the wrong flight then they told us almost missed another flight. Very bad service.

The flight attended didn't ask one everyone in our party if they wanted a drink or snack. The one attended appeared to hate her job which is the one that attended to us.

Flight was delayed, I tried to leave 2days earlier was told to report to airport for standby only to be turned away after paying for an Uber both way from Little Elm TX.

Flight was changed last min. Had a screaming infant a row in front of me and a parent who did nothing to calm the child.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight was delayed over an hour due to flight crew issues, making difficult flight connection

Cancelled my flight last minute and had to end up driving to Texas from Atlanta last minute. I’m going to miss another day of work, drive back to Atlanta , in my own car and spirit doesn’t want to refund the money. First time I tried flying anyone else but delta and I get ripped off . And I had. To pay for seats for a flight that didn’t happen. Usually you could say you get what you pay for but in this case, didn’t get anything and paid for everything never flying spirit again, or even attempting it or thinking about it.

Flight from Tampa to Houston was canceled. SPIRIT rebooked me and they double booked my seat. Conclusion I COULD NOT TRAVEL TO HOUSTON. I MISSED MY GRANDDAUGHTER BIRTHDAY. I would not recommend this company. I will file a complaint. I will never consider SPIRIT as an airline . It’s a faker.

My flight was cancelled and I am stranded in another state

Spirit cancels my flight and I have been stuck here at the airline since March 3rd 2pm and still here everything is close they didn’t accommodate me with a room or nothing they rebooked my flight for 7:25pm to New Orleans then from New Orleans to Fort Lauderdale I Wang Arrive Homw Until The 5th of March I am missing work I hav e kids to get home to and I am currently stuck with no food nowhere to stay no renter cause everything close I spent all my money and I’m very disappointed trying to get home I’m very very mad frustrated and very disappointed

It would have been no e to have the option of a mid day flight and not super early or super late in the day.

The seats were larger & more roomy than the old planes. the crew was excellent. . overall a very good flight.

We waited an hour to get off of the plane

Spirit need to stop nickel and dime for every thing. Next time I am flying Southwest Airlines. This was my first time with Spirit.

Had to check in my very expensive survey equipment on the bottom of the plane and still cost me $330 dollars.

They changed the time first and then canceled flight in last minute. Put me into another flight which had connection. It took me extra 5 hours to get to home. One of the worst experience ever.

Everything was good, and most importantly on time. They have been extremely tardy in some of my flights

They lost my baggage on my connection flight, it’s been 24 hours since I put my claim in and still no update on my bags.

It’s a cheap airline. I wish they had better seats.

The only issues had were outside of Frontier’s control or weren’t expected. It was a two hour flight they completed fast. We landed almost an hour ahead of schedule. The issues with no entertainment or food weren’t issues since there was no expectations. The issue of the loud or crying babies was outside of frontiers control.

Seats are cramped and very uncomfortable. You have to pay for everything and it is too expensive.

Smooth process and flight. My favorite kind. Uneventful and on-time!

Xmas Day- Flights were on time for departure and arrival, baggage check in and boarding process were hassle free, baggage also arrived without any delay. Satisfied customer on this journey.

It’s Frontier so they’d charge you for the air you breath if they can work out how but it was on time.

Why are you charged for everything possible?? I went to my flight 2hours early so I can get some food.. I went to the agent to ask them to check me in and print out boarding pass.. I was told they charge for that. What in the world is that about? I understand if I’m trying to check in over the phone yes by all means charge for service.. if I’m rite there at the building asking to get checked in and get charged for it, that’s uncalled for and asking for more money at every given possibility

We’ve been sitting waiting for a gate for 30 minutes without explanation. Several of the older flight attendants are very rude.

Book cheap flights from Houston to Denver

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Houston to Denver found on KAYAK in the last 72 hours.
5/18Sat
nonstopFrontier
2h 41mIAH-DEN
$29
5/1Wed
nonstopFrontier
2h 43mIAH-DEN
$30
4/16Tue
1 stop
13h 41mIAH-DEN
$57
4/20Sat
1 stop
6h 44mIAH-DEN
$66
5/18Sat
1 stopDelta
8h 13mIAH-DEN
$98
5/22Wed
1 stopAmerican Airlines
4h 25mIAH-DEN
$99
4/12Fri
1 stopAmerican Airlines
4h 18mIAH-DEN
$114
7/21Sun
1 stopDelta
7h 00mIAH-DEN
$233
3/23Sat
nonstopUnited Airlines
2h 32mIAH-DEN
$384
3/26Tue
2 stopsUnited Airlines
17h 15mIAH-DEN
$389

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Last minute flights from George Bush Intcntl to Denver

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Houston to Denver that are departing in the next 10 days.
3/20Wed
nonstopFrontier
2h 43mIAH-DEN
3/26Tue
nonstopFrontier
2h 32mDEN-IAH
$178
3/21Thu
multi-stopFrontier
10h 33mIAH-DEN
3/26Tue
nonstopFrontier
2h 28mDEN-IAH
$185
3/21Thu
multi-stop
10h 33mIAH-DEN
3/26Tue
multi-stop
17h 12mDEN-IAH
$295
3/22Fri
multi-stop
28h 10mIAH-DEN
3/25Mon
nonstop
2h 32mDEN-IAH
$337
3/23Sat
multi-stopUnited Airlines
8h 39mIAH-DEN
3/27Wed
multi-stopUnited Airlines
6h 40mDEN-IAH
$483
3/23Sat
multi-stopUnited Airlines
8h 39mIAH-DEN
3/26Tue
multi-stopUnited Airlines
6h 34mDEN-IAH
$503
3/23Sat
multi-stopDelta
6h 33mIAH-DEN
3/25Mon
multi-stopDelta
6h 44mDEN-IAH
$587
3/22Fri
multi-stopAmerican Airlines
6h 28mIAH-DEN
3/25Mon
multi-stopAmerican Airlines
6h 10mDEN-IAH
$603
3/22Fri
multi-stopAmerican Airlines
4h 37mIAH-DEN
3/24Sun
multi-stopAmerican Airlines
6h 55mDEN-IAH
$638
3/22Fri
multi-stopDelta
9h 12mIAH-DEN
3/23Sat
multi-stopDelta
6h 44mDEN-IAH
$786

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Houston George Bush Airport - Denver Flights

Departure:

Houston George Bush Airport (IAH)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Houston George Bush Airport

Cabin classes:

$768
$597
$710
$78