The flight time from Houston to Denver is 2 hours, 25 minutes. See Data as Tables

Average Timeline

Leaves IAH Houston, TX 2 minutes early.
16 minutes taxiing out
1 hour, 59 minutes in the air
8 minutes taxiing in
Arrives DEN Denver, CO 5 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Houston to Denver is 2 hours, 25 minutes. The time spent in the air is 1 hour, 59 minutes.

The flight distance from Houston to Denver is 862 Miles.

Reverse Journey

Denver to Houston
2 hours, 15 minutes

Flight Time By Airline ?

2h 21m
2h 23m
2h 26m
2h 27m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 30m1h1h 30m2h2h 30m
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?


Flights Per Week



862 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Houston from Denver by plane?

The distance from Houston to Denver by plane is 862 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Houston to Denver?

The flight time from Houston to Denver is 2 hours, 25 minutes. The time spent in the air is 1 hour, 59 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 2 hours, 21 minutes, and United the slowest taking 2 hours, 27 minutes.

What airlines fly from Houston to Denver?

Spirit, United, Southwest, and Frontier are the airlines with direct flights from Houston to Denver.

Does Southwest fly from Houston to Denver?

Yes! Southwest does fly from Houston (IAH) to Denver (DEN). On average, they have 15 flights per week on this route. This may vary seasonally, please check the chart above for more details.

Tables and Explanations

Data Source

Our information is computed from the latest available data from the US Department of Transportation.

Average Timeline Timeline Chart

The average timeline contains the median time a flight spends in 3 stages. The first of these three stages is taxiing out which includes the time from the flight leaving the gate to taking off. The second stage is in the air, which includes the time spent from the flight leaving the ground to touching back down at the end of it's journey. The last stage is taxiing in, which is from when the flight touches down to the flight arriving at it's gate.

The average timeline also estimates on average of when the flight will leave and arrive relative to it's stated departure time.

Leaves Houston 2 minutes early
Taxi Out Time 16 minutes
In the Air 119 minutes
Taxiing In 8 minutes
Arrives Denver 5 minutes early

Flight Reliability Reliability Chart

The reliability of an airline measures how often the airline's flights on this route are cancelled or delayed more than 20 minutes. For example, from Houston to Denver, Southwest is 76% reliable, which means that Southwest flights are on time 76% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Frontier 85% 13% 2%
United 83% 15% 2%
Spirit 79% 17% 4%
Southwest 76% 18% 6%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Houston and Denver, this is due to different operational factors on the ground, as well as scheduling of planes. Each airline's flight time is split into three stages which are described above in the "Average Timeline" section. There are also miscellaneous operational issues which are included in the below total but are not accounted for in one of the three stages.

Airline Taxiing Out
In the Air
Taxiing In
Southwest 11 121 7 141
Spirit 12 121 8 143
Frontier 14 120 9 146
United 17 119 8 147

Flights By Time of Day Flight Time By Day Chart

This one is pretty self explanatory, it represents the number of flights that leave the gate in a given hour of the day. The tricky thing here is that this is normally not a whole number since it is an average over 52 weeks. Partial numbers may indicate that a flight may be seasonal or may take off at different times due to different operational factors.

Time Count
2pm 1.49
7pm 0.45
8pm 0.82
11am 0.4
1pm 0.25
4pm 0.78
3pm 0.08
5am 0.16
7am 1.08
9pm 0.24
12pm 1.32
6pm 0.87
10pm 0.42
5pm 0.56
10am 1.99
9am 0.1
8am 0.98
6am 1.31

Flights By Month Flights By Month Chart

The quantity of flights from Houston to Denver that take off in a given month of the year. This number changes because some flights are seasonal, and almost all flights have uneven demand througout the year.

Month Count
January 413
February 282
March 381
April 424
May 435
June 464
July 458
August 466
September 423
October 428
November 414
December 430

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Houston to Denver that take off on a given day of the week. Some routes only have enough demand to sustain a few trips a week, while others have many flights a day. This number is also an average across the year, and hence may not be a whole number.

Day Count
Monday 14.21
Tuesday 13.48
Wednesday 13.58
Thursday 13.69
Friday 13.73
Saturday 14.02
Sunday 13.79

Flight per Airline (per Week) Flights By Airline Chart

How many times an airline flies this route in a week. Different factors play into how often a carrier chooses to fly a given route including it's need to connect disparate routes, and demand.

Airline Flights per Week
United 1
Southwest 0
Frontier 0
Spirit 0

Flight Time By Time of Day Flight Time by Time of Day Chart

The total flight time varies by each hour of the day due to factors such as airport traffic. More flights leaving an airport may cause higher taxi in or taxi out times. See the description of the average timeline above for a deeper discussion of each of these times.

Time Taxi Out
In the Air
Taxi In
2pm 17 120 8 147
7pm 17 120 6 144
8pm 17 119 7 145
11am 11 120 7 141
1pm 11 121 7 141
4pm 17 118 8 147
3pm 13 121 7 144
5am 12 122 7 143
7am 16 120 7 144
9pm 14 120 7 142
12pm 16 118 8 144
6pm 18 120 9 153
10pm 12 118 8 142
5pm 14 123 8 150
10am 19 117 8 147
9am 18 122 10 151
8am 15 120 11 149
6am 11 120 8 140
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.