Air Canada
flight
AC 4259:
Colorado Springs - Denver
Colorado Springs - Denver
FLIGHT SCHEDULE
Direct Codeshare Flights:
Air Canada AC4259
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:14, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-01-06 through 2026-02-03
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:14, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-01-08 through 2026-02-09
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:14, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-02-10 through 2026-02-11
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:14, non-stop Canadair CRJ (CRJ)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:06, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:05, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:04, non-stop Embraer EMB 175 (E7W)
Direct Codeshare Flights:
Air Canada AC4259
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:02, non-stop Canadair CRJ 550 (CR5)
Direct Codeshare Flights:
Air Canada AC4259
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by United Airlines.
(UA 5291)
Duration: 1:02, non-stop Canadair CRJ (CRJ)
- AC 4259 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 1:02 and 1:14.