(AC) Air Canada 4259 Flight Details
On time | Arrived
Departure
COS
Colorado Springs Airport, CO, US
Flight Gate Times
18-Dec-2025
Scheduled
05:45
MST
Actual
05:49
MST
Total Departure Delay: 4 mins
Flight Runway Times
18-Dec-2025
Scheduled
06:09
MST
Actual
06:13
MST
Runway Delay: 4 mins
Terminal
-
Gate
7
Craft Type
Canadair (Bombardier) Regional Jet 200
CR2
Flight Time
Scheduled
1h 14m
Arrival
DEN
Denver International Airport, CO, US
Flight Gate Times
18-Dec-2025
Scheduled
06:59
MST
Actual
06:43
MST
Total Arrival Delay: -
Flight Runway Times
18-Dec-2025
Scheduled
06:51
MST
Actual
06:37
MST
Runway Delay: -
Terminal
-
Gate
B52
Baggage Claim
18
Tail Number
N878AS
Flight Time
Actual
54m
Flight Notes
Operated by SkyWest Airlines on behalf of United Airlines 5291
Also marketed as (UA) United Airlines 5291
Event Timeline
Date
Event
Data Updated
18 Dec
13:44
06:44
06:44
Time Adjustment
Actual Gate Arrival changed to Dec-18-2025 6:43 AM
18 Dec
13:43
06:43
06:43
Time Adjustment
Estimated Gate Arrival changed from Dec-18-2025 6:45 AM to Dec-18-2025 6:43 AM
18 Dec
13:37
06:37
06:37
Status Landed
Actual Runway Arrival changed to Dec-18-2025 6:37 AM
Status changed from Active to Landed
18 Dec
13:14
06:14
06:14
Time Adjustment
Estimated Runway Departure changed from Dec-18-2025 6:09 AM to Dec-18-2025 6:13 AM
Actual Runway Departure changed to Dec-18-2025 6:13 AM
Estimated Runway Arrival changed from Dec-18-2025 6:22 AM to Dec-18-2025 6:37 AM
Estimated Gate Arrival changed from Dec-18-2025 7:09 AM to Dec-18-2025 6:45 AM
18 Dec
12:55
05:55
05:55
Time Adjustment
Estimated Runway Departure changed from Dec-18-2025 6:08 AM to Dec-18-2025 6:09 AM
Estimated Runway Arrival changed from Dec-18-2025 6:21 AM to Dec-18-2025 6:22 AM
Estimated Gate Arrival changed from Dec-18-2025 6:29 AM to Dec-18-2025 7:09 AM
18 Dec
12:50
05:50
05:50
Status Active
Estimated Runway Departure changed from Dec-18-2025 6:09 AM to Dec-18-2025 6:24 AM
Estimated Gate Departure changed from Dec-18-2025 5:45 AM to Dec-18-2025 5:49 AM
Actual Gate Departure changed to Dec-18-2025 5:49 AM
Status changed from Scheduled to Active
18 Dec
12:50
05:50
05:50
Time Adjustment
Estimated Runway Departure changed from Dec-18-2025 6:24 AM to Dec-18-2025 6:08 AM
Estimated Runway Arrival changed to Dec-18-2025 6:21 AM
Estimated Gate Arrival changed from Dec-18-2025 6:37 AM to Dec-18-2025 6:29 AM
18 Dec
12:19
05:19
05:19
Time Adjustment
Estimated Gate Arrival changed from Dec-18-2025 6:59 AM to Dec-18-2025 6:37 AM
Tail Number changed from N905EV to N878AS
18 Dec
11:22
04:22
04:22
Time Adjustment
Estimated Runway Departure changed to Dec-18-2025 6:09 AM
18 Dec
07:37
00:37
00:37
Gate Adjustment
Arrival Gate changed from B51 to B52
18 Dec
01:43
18:43
18:43
Gate Adjustment
Departure Gate changed from 7 to 5
18 Dec
01:43
18:43
18:43
Gate Adjustment
Departure Gate changed from 5 to 7
17 Dec
22:25
15:25
15:25
Gate Adjustment
Arrival Gate changed from B59 to B51
17 Dec
22:01
15:01
15:01
Equipment Adjustment
Tail Number changed from N506CA to N905EV
17 Dec
21:55
14:55
14:55
Equipment Adjustment
Tail Number changed from N980SW to N506CA
17 Dec
19:01
12:01
12:01
Equipment Adjustment
Tail Number changed from N929SW to N980SW
17 Dec
15:37
08:37
08:37
Equipment Adjustment
Tail Number changed from N980SW to N929SW
17 Dec
12:51
05:51
05:51
Time Adjustment
Scheduled Runway Departure changed from Dec-18-2025 5:56 AM to Dec-18-2025 6:09 AM
Scheduled Runway Arrival changed from Dec-18-2025 6:12 AM to Dec-18-2025 6:51 AM
17 Dec
12:46
05:46
05:46
Time Adjustment
Scheduled Runway Departure changed to Dec-18-2025 5:56 AM
Scheduled Runway Arrival changed to Dec-18-2025 6:12 AM
17 Dec
11:43
04:43
04:43
Equipment Adjustment
Tail Number changed from N978SW to N980SW
17 Dec
02:49
19:49
19:49
Equipment Adjustment
Tail Number changed from N905EV to N978SW
17 Dec
02:07
19:07
19:07
Gate Adjustment
Arrival Gate changed to B59
Baggage changed to 18
16 Dec
12:49
05:49
05:49
Gate Adjustment
Departure Gate changed from 5 to 7
16 Dec
04:13
21:13
21:13
Gate Adjustment
Departure Gate changed to 5
16 Dec
04:07
21:07
21:07
Time Adjustment
Estimated Gate Departure changed to Dec-18-2025 5:45 AM
Estimated Gate Arrival changed to Dec-18-2025 6:59 AM
Tail Number changed to N905EV
Actual Equipment changed to CR2
15 Dec
18:48
11:48
11:48
Record Created
15 Dec
18:48
11:48
11:48
Time Adjustment
Scheduled Gate Departure changed to Dec-18-2025 5:45 AM
Scheduled Gate Arrival changed to Dec-18-2025 6:59 AM
Scheduled Equipment changed to CRJ