Air Canada
flight
AC 4099:
Colorado Springs - Denver
Colorado Springs - Denver
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4099
Effective from 2026-10-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5400)
Duration: 1:01, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4099
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5391)
Duration: 1:06, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4099
Effective 2026-04-30 through 2026-10-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5391)
Duration: 1:04, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4099
Effective 2026-02-12 through 2026-02-22
Mon
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 5391)
Duration: 1:07, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4099
Effective 2026-02-25 through 2026-03-27
Mon
-
-
Tue
-
-
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by United Airlines.
(UA 5391)
Duration: 1:07, non-stop Canadair CRJ (CRJ)
- AC 4099 is a domestic flight departing from the Colorado Springs airport (COS) and arriving at Denver airport (DEN).
- The flight distance is 73 miles, or 117 km.
- The timezone of both the departure and the arrival airports is UTC-7 . Current time at both airports is (loading...).
- For direct flights, the flight time varies between 1:01 and 1:07.