The flight time from Boise to Denver is 1 hour, 49 minutes. See Data as Tables

Average Timeline

Leaves BOI Boise, ID 4 minutes early.
12 minutes taxiing out
1 hour, 26 minutes in the air
8 minutes taxiing in
Arrives DEN Denver, CO 7 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Boise to Denver is 1 hour, 49 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, 54 minutes

Flight Time By Airline ?

1h 41m
1h 52m
1h 55m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 30m1h1h 30m2h
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, 49 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, 55 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 13 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 4 minutes early
Taxi Out Time 12 minutes
In the Air 86 minutes
Taxiing In 8 minutes
Arrives Denver 7 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 86% reliable, which means that Southwest flights are on time 86% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Southwest 86% 13% 1%
United 84% 15% 1%
Frontier 77% 23% 0%

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 84 6 101
United 13 87 9 112
Frontier 12 83 17 115

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
7pm 0.01
6am 0.32
2pm 0.74
1pm 0.27
8am 1.16
10am 0.86
5pm 0.51
5am 0.35
12pm 0.86
3pm 0.08
4pm 0.42
7am 0.5
9am 0.12
8pm 0.12

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 184
February 164
March 181
April 180
May 188
June 211
July 217
August 207
September 186
October 215
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 6.42
Tuesday 6.46
Wednesday 6.71
Thursday 6.37
Friday 6.33
Saturday 6.29
Sunday 6.19

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

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
7pm 11 80 30 122
6am 10 85 7 103
2pm 9 85 6 101
1pm 9 84 5 99
8am 13 84 8 109
10am 14 90 9 113
5pm 13 89 11 118
5am 15 88 10 114
12pm 11 84 7 104
3pm 9 84 5 99
4pm 15 91 11 121
7am 10 84 6 101
9am 22 88 12 129
8pm 12 83 15 113
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.