Denver International Airport
Denver, United StatesDEN / KDEN
International hub · 203 direct destinations · 6 runways · longest runway 16,001 ft
43 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Denver → Washington
DEN
DenverDenver International Airport
DenverDenver International AirportDCAWashingtonRonald Reagan Washington National Airport
WashingtonRonald Reagan Washington National Airport- Distance
- 1,472 mi
- Estimated flight time
- ~3h 30m
Washington is currently 2 hours ahead of Denver.
Observed nonstop
How often does this route fly?
Frequency
A couple of times a day
On average around 3.25 flights a day, observed from October 2025 to September 2026.
- 3.3
- flights per day
- 4
- busiest month · Oct
- 3
- quietest month · Dec
- 2 hr 52 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 3Jan2026
- 3Feb
- 3Mar
- 3Apr
- 4May
- 4Jun
- 3.5Jul
- 3Aug
- 4Sep
- 4Oct2025
- 4Nov
- 3Dec
Airlines
Who flies it
Frontier Airlinesall year
United Airlinesall year
Through the day
Departure times
Local time in Denver. Most departures between 09:00 and 12:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 3.7Mon
- 2.6Tue
- 2.6Wed
- 3.5Thu
- 3.7Fri
- 3.7Sat
- 3.5Sun
Fleet
Aircraft observed
- Airbus A320neoA20N65%
- Airbus A321neoA21N18%
- Boeing 757-300B7539%
- Airbus A320A3205%
- Boeing 737-800B7381%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 3 | 99 |
|
| February 2026 | 3 | 96 |
|
| March 2026 | 3 | 102 |
|
| April 2026 | 3 | 93 |
|
| May 2026 | 4 | 107 |
|
| June 2026 | 4 | 101 |
|
| July 2026 | 3.5 | 99 |
|
| August 2026 | 3 | 97 |
|
| September 2026 | 4 | 101 |
|
| October 2025 | 4 | 113 |
|
| November 2025 | 4 | 105 |
|
| December 2025 | 3 | 89 |
|
Airlines observed on this route
From observed callsign routes on DEN-DCA - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Denver: 203.
- Direct destinations observed from Washington: 111.
The airports on this route
Ronald Reagan Washington National Airport
Washington, United StatesDCA / KDCA
Major airport · 111 direct destinations · 3 runways · longest runway 7,169 ft
72 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Denver to Washington
The observed direct connection between Denver International Airport (DEN) and Ronald Reagan Washington National Airport (DCA) covers approximately 1,472 mi. The estimated flight time is around 3h 30m. Frontier Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Denver from Washington by air?
- The great-circle distance between Denver International Airport and Ronald Reagan Washington National Airport is approximately 1,472 mi.
- How long is the flight from Denver to Washington?
- Based on the distance, the estimated flight time is about 3h 30m. This is an estimate, not a schedule.
- Is there a direct connection from Denver to Washington?
- Yes, a direct connection between DEN and DCA has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Frontier Airlines and United Airlines.
- How often is there a flight from Denver to Washington?
- On average around 3.25 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 1,202 observed flights. Mainly Frontier Airlines, United Airlines. That is an observation, not a timetable.
- What is the current time difference between Denver and Washington?
- Washington is currently 2 hours ahead of Denver.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.