The flight time from Denver to Washington is 3 hours, 10 minutes. See Data as Tables

Average Timeline

Leaves DEN Denver, CO 3 minutes late.
15 minutes taxiing out
2 hours, 48 minutes in the air
5 minutes taxiing in
Arrives IAD Washington, DC 1 minute early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Denver to Washington is 3 hours, 10 minutes. The time spent in the air is 2 hours, 48 minutes.

The flight distance from Denver to Washington is 1452 Miles.

Reverse Journey

Washington to Denver
3 hours, 47 minutes

Flight Time By Airline ?

3h 8m
3h 11m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?


Flights Per Week



1452 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Denver from Washington by plane?

The distance from Denver to Washington by plane is 1452 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Denver to Washington?

The flight time from Denver to Washington is 3 hours, 10 minutes. The time spent in the air is 2 hours, 48 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 3 hours, 8 minutes, and United the slowest taking 3 hours, 11 minutes.

What airlines fly from Denver to Washington?

United and Southwest are the airlines with direct flights from Denver to Washington.

Does Southwest fly from Denver to Washington?

Yes! Southwest does fly from Denver (DEN) to Washington (IAD). On average, they have 10 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 Denver 3 minutes late
Taxi Out Time 15 minutes
In the Air 168 minutes
Taxiing In 5 minutes
Arrives Washington 1 minute 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 Denver to Washington, Southwest is 63% reliable, which means that Southwest flights are on time 63% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
United 84% 15% 1%
Southwest 63% 32% 5%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Denver and Washington, 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 12 169 5 188
United 16 167 6 191

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
8am 0.01
7am 0.08
5pm 0.8
6am 0.19
1am 0.01
11am 0.99
7pm 0.07
10am 0.56
3pm 0.56
12pm 0.16
1pm 1.03
2pm 0.37
9am 0.54
4pm 0.45
11pm 0.35
6pm 0.83

Flights By Month Flights By Month Chart

The quantity of flights from Denver to Washington 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 248
February 158
March 187
April 185
May 187
June 199
July 232
August 244
September 233
October 240
November 237
December 256

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Denver to Washington 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 7.44
Tuesday 7
Wednesday 7.02
Thursday 7.29
Friday 7.29
Saturday 6.71
Sunday 7.37

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

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
8am 11 167 5 183
7am 14 161 5 183
5pm 16 164 5 187
6am 13 166 8 189
1am 12 169 6 188
11am 14 170 7 193
7pm 14 166 5 184
10am 19 168 6 195
3pm 15 167 6 192
12pm 11 172 5 189
1pm 14 169 5 189
2pm 16 169 5 190
9am 18 165 5 190
4pm 14 167 5 188
11pm 13 168 5 186
6pm 18 168 5 193
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.