The flight time from San Diego to Denver is 2 hours, 10 minutes. See Data as Tables

Average Timeline

Leaves SAN San Diego, CA 5 minutes early.
12 minutes taxiing out
1 hour, 50 minutes in the air
6 minutes taxiing in
Arrives DEN Denver, CO 14 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from San Diego to Denver is 2 hours, 10 minutes. The time spent in the air is 1 hour, 50 minutes.

The flight distance from San Diego to Denver is 853 Miles.

Reverse Journey

Denver to San Diego
2 hours, 14 minutes

Flight Time By Airline ?

2h 6m
2h 11m
2h 15m
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



853 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is San Diego from Denver by plane?

The distance from San Diego to Denver by plane is 853 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from San Diego to Denver?

The flight time from San Diego to Denver is 2 hours, 10 minutes. The time spent in the air is 1 hour, 50 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 2 hours, 6 minutes, and Frontier the slowest taking 2 hours, 15 minutes.

What airlines fly from San Diego to Denver?

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

Does Southwest fly from San Diego to Denver?

Yes! Southwest does fly from San Diego (SAN) to Denver (DEN). On average, they have 28 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 San Diego 5 minutes early
Taxi Out Time 12 minutes
In the Air 110 minutes
Taxiing In 6 minutes
Arrives Denver 14 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 San Diego to Denver, Southwest is 94% reliable, which means that Southwest flights are on time 94% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Frontier 95% 4% 1%
Southwest 94% 5% 1%
United 92% 7% 1%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between San Diego 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 10 110 6 126
United 13 110 6 131
Frontier 14 110 9 135

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 0.52
6am 1.5
8am 0.47
10am 0.28
3pm 0.36
7am 0.53
11am 0.55
5pm 0.47
4pm 0.33
8pm 0.21
9pm 0.04
9am 1.07
12pm 0.55
1pm 1.26
7pm 0.44
6pm 0.07

Flights By Month Flights By Month Chart

The quantity of flights from San Diego 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 225
February 213
March 317
April 302
May 339
June 232
July 266
August 297
September 214
October 225
November 284
December 278

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from San Diego 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 9.04
Tuesday 8.06
Wednesday 8.21
Thursday 8.53
Friday 8.74
Saturday 8.77
Sunday 8.89

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
Southwest 1
United 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
2pm 11 111 6 129
6am 15 109 8 134
8am 10 110 6 128
10am 11 109 6 127
3pm 10 111 6 128
7am 13 110 8 134
11am 12 110 6 128
5pm 10 109 6 127
4pm 11 110 7 130
8pm 10 108 5 125
9pm 11 108 5 126
9am 12 110 6 128
12pm 10 109 7 129
1pm 12 111 6 130
7pm 11 110 7 129
6pm 12 109 8 130
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.