Washington Dulles International Airport
Dulles, United StatesIAD / KIAD
International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft
81 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Dulles → Colorado Springs
IAD
DullesWashington Dulles International Airport
DullesWashington Dulles International AirportCOSColorado SpringsCity of Colorado Springs Municipal Airport
Colorado SpringsCity of Colorado Springs Municipal Airport- Distance
- 1,460 mi
- Estimated flight time
- ~3h 25m
Colorado Springs is currently 2 hours behind Dulles.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 2
- busiest month · May
- 1
- quietest month · Oct
- 3 hr 27 min
- measured flight time
- 5 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- 1Feb
- 1Mar
- –Apr
- 2May
- –Jun
- –Jul
- 1Aug
- –Sep
- 1Oct2025
- –Nov
- –Dec
Airlines
Who flies it
United Airlinesnow and then
Through the day
Departure times
Local time in Dulles. Most departures between 16:00 and 19:00.
- 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
- 0.1Mon
- 0Tue
- 0.1Wed
- 0.1Thu
- 0Fri
- 0Sat
- 0Sun
Fleet
Aircraft observed
- Boeing 737-900B73913%
- Boeing 757-300B75313%
- Cessna Citation SovereignC68013%
- Dassault Falcon 7XFA7X13%
- G28013%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | 1 | 2 | – |
| March 2026 | 1 | 3 | – |
| April 2026 | Not seen in this month. | ||
| May 2026 | 2 | 4 | – |
| June 2026 | Not seen in this month. | ||
| July 2026 | Not seen in this month. | ||
| August 2026 | 1 | 4 |
|
| September 2026 | Not seen in this month. | ||
| October 2025 | 1 | 3 | – |
| November 2025 | Not seen in this month. | ||
| December 2025 | Not seen in this month. | ||
Airlines observed on this route
From observed callsign routes on IAD-COS - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- Direct destinations observed from Dulles: 171.
- Direct destinations observed from Colorado Springs: 37.
The airports on this route
City of Colorado Springs Municipal Airport
Colorado Springs, United StatesCOS / KCOS
Regional airport · 37 direct destinations · 3 runways · longest runway 13,501 ft
51 °F · ClearSource: 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 Dulles to Colorado Springs
The observed direct connection between Washington Dulles International Airport (IAD) and City of Colorado Springs Municipal Airport (COS) covers approximately 1,460 mi. The estimated flight time is around 3h 25m. United Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Dulles from Colorado Springs by air?
- The great-circle distance between Washington Dulles International Airport and City of Colorado Springs Municipal Airport is approximately 1,460 mi.
- How long is the flight from Dulles to Colorado Springs?
- Based on the distance, the estimated flight time is about 3h 25m. This is an estimate, not a schedule.
- Is there a direct connection from Dulles to Colorado Springs?
- Yes, a direct connection between IAD and COS has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: United Airlines.
- How often is there a flight from Dulles to Colorado Springs?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 16 observed flights. Mainly United Airlines. That is an observation, not a timetable.
- What is the current time difference between Dulles and Colorado Springs?
- Colorado Springs is currently 2 hours behind Dulles.
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.