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

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Wed 1/24
Wed 1/31
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Good to Know

Low Season:
October
Best time to beat the crowds
5%
expected price decrease
High Season:
December
Most popular time to fly
26%
expected price increase
Average Price:
$439
(avg. price over the last 2 weeks)
Good Deal:
$241
or less (round trip)

When to Book Flights from Houston George Bush Intcntl to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $241 or less.
The cheapest flight from Houston George Bush Intcntl to Denver International was found 19 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 3% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Houston George Bush Intcntl to Denver International Flights

How long does a flight from Houston George Bush Intcntl to Denver International take?
An average nonstop flight takes 2h 29m, covering a distance of 863 miles.
How many flights are there between Houston George Bush Intcntl and Denver International?
There are 799 (nonstop) flights between Houston George Bush Intcntl and Denver International per week, averaging 122 per day.
Which airlines provide the cheapest flights from Houston George Bush Intcntl to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on United ($85), Multiple Airlines ($91) and Spirit Airlines ($93).
Do I need a passport to fly between Houston George Bush Intcntl and Denver International?
No.
Which airlines fly most frequently between Houston George Bush Intcntl and Denver International?
Air Canada (36 times daily), Air New Zealand (36 times daily), United (35 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Houston George Bush Intcntl to Denver International?
For Houston George Bush Intcntl to Denver International, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Denver International back to Houston George Bush Intcntl, the best deals are generally found on Tuesday, with Friday being the most expensive.

Book cheap flights from Houston George Bush Intcntl to Denver International (round-trip)

Airports
Origin
Houston
$85
only
$85
Destination
Denver
$85
only
$85
Tue, Feb 6
IAH
DEN
2h 32m
Wed, Feb 7
DEN
IAH
2h 19m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 105 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DEN
Mediocre 2.0

The Gates changed,Flight Delayed half an hour.

IAH
DEN
Okay 5.3

The plane was not cleaned prior to departure so the bathroom was disgusting. One of flight attendants cleaned it , probably not her job but appreciated. The staff was terrific with an exhausted group of passengers.

This flight was more than two hours late. The updates were not shared at the gate and we were strung along about the departure time. If a person didn't have the app, little to no info was available.

IAH
DEN
Mediocre 2.0

Nothing

6 hour delay. Sending the plane from Denver to salt lake and back to Denver before a 7:55am flight was supposed to take off . Having 1 person on the plane from Salt Lake to Denver. Forcing a full plane of Denver durango customers waiting for 6 hours

IAH
DEN
Excellent 10.0

Once again, United was exceptional in providing the utmost care and service for its passengers.

No complaints.

IAH
DEN
Excellent 10.0

There were no blankets

Tue, Feb 27
IAH
DEN
2h 38m
Thu, Mar 1
DEN
IAH
2h 19m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 30
IAH
DEN
2h 37m
Sat, Feb 3
DEN
IAH
2h 17m
Trip: 5 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Excellent 10.0

Na

IAH
DEN
Mediocre 2.0

ABSOLUTELY NOTHING!!!

Everything. Glee spirit one other time and completely regret it. Haven't flown with them in 4 years. I remember why now. Flight was originally cheaper but by the time you pay all of there fees to get on the plane you're not saving at all. And once on the plane everything costs a fortune so now you've spent even more. They are never on time in my experiences and don't feel the need to give the paying customers updates. After several hours of delays you get the pleasure of being absolutely crammed in their crappy aircraft. NEVER AGAIN!

IAH
DEN
Excellent 8.3

First officer is too load on PA

IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Good 7.0

Good flight

Didn't purchase food or entertainment

Mon, Jan 29
IAH
DEN
2h 42m
Wed, Jan 31
DEN
IAH
2h 20m
Trip: 3 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 192 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAH
DEN
Good 7.0

All good. 1 stars for food and entertainment cuz there was none, at least food only for purchase. Understandable though.

IAH
DEN
Mediocre 2.3

The initial ticket price. I was just needing a cheap flight to SLC from Houston to pick up my family and drive them back home. So for the price I didn't need any luggage and it was perfect and cheap.

The lay over. The cost for a 12 oz can of soda is two dollars. The rude staff. The fact that my flight should of got there at 11:45 and instead it got there at 2:00 am.

IAH
DEN
Okay 5.3

The crew was nice.

The airline charges for carry-on bag!

IAH
DEN
Excellent 10.0

On time. Smooth flight. Friendly crew. Comfortable seat.

IAH
DEN
Good 6.4

simplicity.

help but i had to pay to change my flight during Harvey. I paid double because of it. second time they did it free of charge, it should have been free of charge my ticket was 157, it bacame 300+. seats dont recline. tough for your back.

Mon, Feb 12
IAH
DEN
2h 33m
Tue, Feb 20
DEN
IAH
2h 19m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 105 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DEN
Mediocre 2.0

Bad communication between crew and guests . We sat on the runway for over an hour before them told us what was going on . The most rude and awful flight attendants I've ever had . Same thing with landing no communication as to why it took so long till the end , over all I'll prolly never fly United again and I would like a full refund .

IAH
DEN
Good 7.6

Suitcase arrived at the carrousel on time , much better than Houston.

IAH
DEN
Good 6.0

Busy & hectic with a very full flight, but staff was attentive & friendly.

All fine

IAH
DEN
Okay 5.3

The plane was not cleaned prior to departure so the bathroom was disgusting. One of flight attendants cleaned it , probably not her job but appreciated. The staff was terrific with an exhausted group of passengers.

This flight was more than two hours late. The updates were not shared at the gate and we were strung along about the departure time. If a person didn't have the app, little to no info was available.

IAH
DEN
Mediocre 2.0

Nothing

6 hour delay. Sending the plane from Denver to salt lake and back to Denver before a 7:55am flight was supposed to take off . Having 1 person on the plane from Salt Lake to Denver. Forcing a full plane of Denver durango customers waiting for 6 hours

Sat, Feb 17
IAH
DEN
2h 36m
Tue, Feb 20
DEN
IAH
2h 22m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Excellent 10.0

Na

IAH
DEN
Mediocre 2.0

ABSOLUTELY NOTHING!!!

Everything. Glee spirit one other time and completely regret it. Haven't flown with them in 4 years. I remember why now. Flight was originally cheaper but by the time you pay all of there fees to get on the plane you're not saving at all. And once on the plane everything costs a fortune so now you've spent even more. They are never on time in my experiences and don't feel the need to give the paying customers updates. After several hours of delays you get the pleasure of being absolutely crammed in their crappy aircraft. NEVER AGAIN!

IAH
DEN
Excellent 8.3

First officer is too load on PA

IAH
DEN
Excellent 10.0

Flight was smooth and relaxing

The delay but it wasn't to long of a delay

IAH
DEN
Good 7.0

Good flight

Didn't purchase food or entertainment

Mon, Mar 5
IAH
DEN
2h 31m
Fri, Mar 9
DEN
IAH
2h 19m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 105 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DEN
Good 6.0

Busy & hectic with a very full flight, but staff was attentive & friendly.

All fine

IAH
DEN
Mediocre 2.0

The Gates changed,Flight Delayed half an hour.

IAH
DEN
Excellent 10.0

There were no blankets

IAH
DEN
Good 7.6

Suitcase arrived at the carrousel on time , much better than Houston.

IAH
DEN
Mediocre 2.0

Bad communication between crew and guests . We sat on the runway for over an hour before them told us what was going on . The most rude and awful flight attendants I've ever had . Same thing with landing no communication as to why it took so long till the end , over all I'll prolly never fly United again and I would like a full refund .

Thu, Mar 1
IAH
DEN
2h 36m
Sat, Mar 3
DEN
IAH
2h 22m
Trip: 3 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Mediocre 3.3

Flight good very basic plane like they don’t even have a pocket holder and the tray is minuscule. The chairs are pretty firm but not bad for my 2 hour flight.

My baggage was damaged , found open with one of the contents upon top of luggage, found it after beltmstopped and couldn’t find mine, I asked about it and Spirit lady said it’s to the side

IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Excellent 10.0

Flight was smooth and relaxing

The delay but it wasn't to long of a delay

IAH
DEN
Excellent 10.0

I liked that the staff was very friendly and helpful

I dod not like that a price amount was added for everything extra

IAH
DEN
Mediocre 2.0

Not much leg room. They don't serve food. They have outrages bag fees. I don't recommend this airline to anyone.

Tue, Mar 6
IAH
DEN
2h 31m
Tue, Mar 20
DEN
IAH
2h 22m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 1
IAH
DEN
2h 35m
Wed, May 9
DEN
IAH
2h 31m
Trip: 9 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 192 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAH
DEN
Good 7.0

All good. 1 stars for food and entertainment cuz there was none, at least food only for purchase. Understandable though.

IAH
DEN
Excellent 10.0

Clean and comfortable seats

IAH
DEN
Okay 4.3

No beverage service throughout the flight, not even water. Although, they collected trash about 10 times.

IAH
DEN
Excellent 8.5

I loved that the plane was new (at least it looked like it) and super clean and that the flight was ON TIME!

Don't bother paying extra for a seat. The crew does not enforce that everyone is sitting where they are supposed to. I paid extra for a seat, and someone was sitting there and refused to get up. I didn't want to make a scene, as I don't want to be on the news for trouble on an aircraft, but I would appreciate it if the crew would make sure people are sitting where they are supposed to if seating costs money.

IAH
DEN
Good 6.4

simplicity.

help but i had to pay to change my flight during Harvey. I paid double because of it. second time they did it free of charge, it should have been free of charge my ticket was 157, it bacame 300+. seats dont recline. tough for your back.

Wed, Jan 31
IAH
DEN
2h 37m
Sat, Feb 3
DEN
IAH
2h 17m
Trip: 4 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Excellent 10.0

Flight was smooth and relaxing

The delay but it wasn't to long of a delay

IAH
DEN
Excellent 10.0

I liked that the staff was very friendly and helpful

I dod not like that a price amount was added for everything extra

IAH
DEN
Mediocre 3.3

Flight good very basic plane like they don’t even have a pocket holder and the tray is minuscule. The chairs are pretty firm but not bad for my 2 hour flight.

My baggage was damaged , found open with one of the contents upon top of luggage, found it after beltmstopped and couldn’t find mine, I asked about it and Spirit lady said it’s to the side

IAH
DEN
Good 6.0

Nothing bad, nothing outstanding either.

With all the baggage fees and the hassle of having to go back and pay for bags online after purchasing tickets, I'll fly a major carrier next time. After crunching the numbers and inconvenience of it all, I didn't save anything by flying Spirit. You truly do get what you pay for...go cheap, get cheap.

Wed, Apr 18
IAH
DEN
2h 41m
Sat, Apr 21
DEN
IAH
2h 27m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 1
IAH
DEN
2h 36m
Tue, Mar 6
DEN
IAH
2h 22m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Good 6.6

Got what paid for

IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Mediocre 2.0

Nothing

I arrived at the terminal three hours early, connecting from a non-Spirit flight from Central America. Spirit employees wouldn't check me in, saying they were too busy and I need to wait, but no worry, there's plenty of time. Asked again later and was told to check in online. Checked in online and was told (after the many upsell screens) that I couldn't print a boarding pass and needed to go to a Spirit counter. Went back to the Spirit gate and they said I hadn't checked in so they gave away my seat, and they didn't have another flight until tomorrow. Did I want it? Nope. Bought tickets on a real airline. Will never, ever travel with Spirit again.

IAH
DEN
Excellent 8.3

First officer is too load on PA

IAH
DEN
Excellent 10.0

Flight was smooth and relaxing

The delay but it wasn't to long of a delay

Sat, Apr 21
IAH
DEN
2h 40m
Wed, Apr 25
DEN
IAH
2h 23m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 5
IAH
DEN
2h 35m
Tue, Jun 12
DEN
IAH
2h 31m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 192 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAH
DEN
Excellent 10.0

On time. Smooth flight. Friendly crew. Comfortable seat.

IAH
DEN
Excellent 10.0

Everyone was so nice, from the sweet girl who checked our bags in Houston to all the flight attendants on the plane.

The girl in Houston could've used some help

IAH
DEN
Excellent 10.0

Clean and comfortable seats

IAH
DEN
Okay 5.0

Everything was on time

The landing was miserable, getting off the plane took about 35 minutes.

IAH
DEN
Okay 4.3

No beverage service throughout the flight, not even water. Although, they collected trash about 10 times.

Wed, Mar 7
IAH
DEN
2h 36m
Tue, Mar 13
DEN
IAH
2h 22m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Excellent 10.0

I liked that the staff was very friendly and helpful

I dod not like that a price amount was added for everything extra

IAH
DEN
Good 6.0

Nothing bad, nothing outstanding either.

With all the baggage fees and the hassle of having to go back and pay for bags online after purchasing tickets, I'll fly a major carrier next time. After crunching the numbers and inconvenience of it all, I didn't save anything by flying Spirit. You truly do get what you pay for...go cheap, get cheap.

IAH
DEN
Mediocre 2.0

Nothing

I arrived at the terminal three hours early, connecting from a non-Spirit flight from Central America. Spirit employees wouldn't check me in, saying they were too busy and I need to wait, but no worry, there's plenty of time. Asked again later and was told to check in online. Checked in online and was told (after the many upsell screens) that I couldn't print a boarding pass and needed to go to a Spirit counter. Went back to the Spirit gate and they said I hadn't checked in so they gave away my seat, and they didn't have another flight until tomorrow. Did I want it? Nope. Bought tickets on a real airline. Will never, ever travel with Spirit again.

IAH
DEN
Mediocre 3.3

Flight good very basic plane like they don’t even have a pocket holder and the tray is minuscule. The chairs are pretty firm but not bad for my 2 hour flight.

My baggage was damaged , found open with one of the contents upon top of luggage, found it after beltmstopped and couldn’t find mine, I asked about it and Spirit lady said it’s to the side

Tue, Jun 19
IAH
DEN
2h 35m
Tue, Jun 26
DEN
IAH
2h 31m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 192 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAH
DEN
Excellent 10.0

I've flown Frontier before & you are a great airline.

IAH
DEN
Mediocre 2.3

The initial ticket price. I was just needing a cheap flight to SLC from Houston to pick up my family and drive them back home. So for the price I didn't need any luggage and it was perfect and cheap.

The lay over. The cost for a 12 oz can of soda is two dollars. The rude staff. The fact that my flight should of got there at 11:45 and instead it got there at 2:00 am.

IAH
DEN
Excellent 10.0

Clean and comfortable seats

IAH
DEN
Okay 4.3

No beverage service throughout the flight, not even water. Although, they collected trash about 10 times.

IAH
DEN
Good 7.0

All good. 1 stars for food and entertainment cuz there was none, at least food only for purchase. Understandable though.

Thu, May 10
IAH
DEN
2h 40m
Tue, May 15
DEN
IAH
2h 27m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 132 reviews
Overall
5.7
Boarding
6.0
Comfort
5.3
Crew
6.4
Entertainment
4.5
Food
4.6
IAH
DEN
Excellent 8.3

First officer is too load on PA

IAH
DEN
Excellent 10.0

Flight was smooth and relaxing

The delay but it wasn't to long of a delay

IAH
DEN
Okay 5.0

Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag

IAH
DEN
Excellent 10.0

I liked that the staff was very friendly and helpful

I dod not like that a price amount was added for everything extra

IAH
DEN
Good 6.6

Got what paid for

Tue, Jul 10
IAH
DEN
2h 29m
Tue, Jul 17
DEN
IAH
2h 33m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 192 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
IAH
DEN
Excellent 10.0

Everyone was so nice, from the sweet girl who checked our bags in Houston to all the flight attendants on the plane.

The girl in Houston could've used some help

IAH
DEN
Okay 5.3

The crew was nice.

The airline charges for carry-on bag!

IAH
DEN
Mediocre 2.3

The initial ticket price. I was just needing a cheap flight to SLC from Houston to pick up my family and drive them back home. So for the price I didn't need any luggage and it was perfect and cheap.

The lay over. The cost for a 12 oz can of soda is two dollars. The rude staff. The fact that my flight should of got there at 11:45 and instead it got there at 2:00 am.

IAH
DEN
Excellent 10.0

Clean and comfortable seats

IAH
DEN
Okay 5.6

On time friendly crew great price

No recline on seats poor room for legs

Fri, Apr 13
IAH
DEN
2h 33m
Sun, Apr 15
DEN
IAH
2h 20m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 105 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DEN
Excellent 10.0

There were no blankets

IAH
DEN
Mediocre 2.0

Bad communication between crew and guests . We sat on the runway for over an hour before them told us what was going on . The most rude and awful flight attendants I've ever had . Same thing with landing no communication as to why it took so long till the end , over all I'll prolly never fly United again and I would like a full refund .

IAH
DEN
Good 7.6

Suitcase arrived at the carrousel on time , much better than Houston.

IAH
DEN
Mediocre 2.0

Nothing

6 hour delay. Sending the plane from Denver to salt lake and back to Denver before a 7:55am flight was supposed to take off . Having 1 person on the plane from Salt Lake to Denver. Forcing a full plane of Denver durango customers waiting for 6 hours

IAH
DEN
Good 6.0

The flight crew was very helpful and very nice. I was traveling with my 7 month old daughter by myself and the crew made sure I was taken care of.

When I got off the plane and was waiting for my stroller and car seat to be brought up from the cargo hold, I received the car seat first in good condition. My stroller, however, had the clip busted off that connects the car seat to the stroller and cannot be replaced. So my entire travel system is now unusable. I know this happened on my transfer from Houston to Denver because I had to use my stroller when I got off of my flight from West Palm Beach to Houston and the entire thing was in tact. This is extremely frustrating because this travel system is $450 and is now unusable. And what's even more frustrating is that these items have to be gate checked and are given "special handling" tags when they are checked. The clip that was busted off is a pretty substantial piece so my stroller had to have been handled extremely poorly in order for this clip to bust lose.

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Houston George Bush Intcntl to Denver International Flight Information

Avg. Flight Duration 2h 29m
Flights Arrive in Denver International
Flights Depart from Houston George Bush Intcntl
Flight Price $85
Distance 863 miles
Airlines United, Spirit Airlines, Frontier
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.