The flight time from Boise to Denver is 1 hour, 45 minutes. See Data as Tables

Average Timeline

Leaves BOI Boise, ID 5 minutes early.
11 minutes taxiing out
1 hour, 26 minutes in the air
7 minutes taxiing in
Arrives DEN Denver, CO 10 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Boise to Denver is 1 hour, 45 minutes. The time spent in the air is 1 hour, 26 minutes.

The flight distance from Boise to Denver is 649 Miles.

Reverse Journey

Denver to Boise
1 hour, 52 minutes

Flight Time By Airline ?

1h 41m
1h 50m
1h 57m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

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

Flights By Time of Day ?


Flights Per Week



649 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Boise from Denver by plane?

The distance from Boise to Denver by plane is 649 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Boise to Denver?

The flight time from Boise to Denver is 1 hour, 45 minutes. The time spent in the air is 1 hour, 26 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 1 hour, 41 minutes, and Frontier the slowest taking 1 hour, 57 minutes.

What airlines fly from Boise to Denver?

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

Does Southwest fly from Boise to Denver?

Yes! Southwest does fly from Boise (BOI) to Denver (DEN). On average, they have 16 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 Boise 5 minutes early
Taxi Out Time 11 minutes
In the Air 86 minutes
Taxiing In 7 minutes
Arrives Denver 10 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 Boise to Denver, Southwest is 89% reliable, which means that Southwest flights are on time 89% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Frontier 100% 0% 0%
Southwest 89% 5% 6%
United 86% 9% 5%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Boise 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 9 85 6 101
United 12 88 8 110
Frontier 11 80 26 117

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
11am 0.45
7pm 0.02
6am 0.24
2pm 1.08
1pm 0.08
8am 0.69
10am 0.48
5pm 0.43
5am 0.19
12pm 0.33
3pm 0.18
4pm 0.08
7am 0.73
9am 0.13
8pm 0.01

Flights By Month Flights By Month Chart

The quantity of flights from Boise 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 191
February 176
March 186
April 117
May 91
June 153
July 180
August 194
September 149
October 151
November 197
December 198

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Boise 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 5.77
Tuesday 5.6
Wednesday 5.52
Thursday 5.38
Friday 5.77
Saturday 5.17
Sunday 4.92

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 0
Southwest 0
Frontier 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
11am 10 86 6 102
7pm 9 86 7 108
6am 10 85 6 101
2pm 10 85 7 103
1pm 10 84 5 98
8am 11 86 6 105
10am 12 90 9 112
5pm 11 89 10 113
5am 13 87 10 112
12pm 10 83 7 100
3pm 10 91 8 111
4pm 10 86 6 102
7am 11 86 7 106
9am 9 89 7 108
8pm 11 80 12 115
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.