(AC) Air Canada 3984 Flight Details
On time | Arrived
Departure
COS
Colorado Springs Airport, CO, US
Flight Gate Times
18-Dec-2025
Scheduled
07:40
MST
Actual
07:32
MST
Total Departure Delay: -
Flight Runway Times
18-Dec-2025
Scheduled
08:04
MST
Actual
07:59
MST
Runway Delay: -
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
08:54
MST
Actual
08:29
MST
Total Arrival Delay: -
Flight Runway Times
18-Dec-2025
Scheduled
08:46
MST
Actual
08:21
MST
Runway Delay: -
Terminal
-
Gate
B70
Baggage Claim
18
Tail Number
N978SW
Flight Time
Actual
57m
Flight Notes
Operated by SkyWest Airlines on behalf of United Airlines 4677
Also marketed as (UA) United Airlines 4677
Event Timeline
Date
Event
Data Updated
18 Dec
15:30
08:30
08:30
Time Adjustment
Actual Gate Arrival changed to Dec-18-2025 8:29 AM
18 Dec
15:25
08:25
08:25
Time Adjustment
Estimated Gate Arrival changed from Dec-18-2025 8:31 AM to Dec-18-2025 8:29 AM
18 Dec
15:22
08:22
08:22
Status Landed
Estimated Runway Arrival changed from Dec-18-2025 8:23 AM to Dec-18-2025 8:21 AM
Actual Runway Arrival changed to Dec-18-2025 8:21 AM
Status changed from Active to Landed
18 Dec
15:01
08:01
08:01
Time Adjustment
Estimated Runway Arrival changed from Dec-18-2025 8:08 AM to Dec-18-2025 8:23 AM
Estimated Gate Arrival changed from Dec-18-2025 8:16 AM to Dec-18-2025 8:31 AM
18 Dec
15:00
08:00
08:00
Time Adjustment
Estimated Runway Departure changed from Dec-18-2025 7:55 AM to Dec-18-2025 7:59 AM
Actual Runway Departure changed to Dec-18-2025 7:59 AM
18 Dec
14:37
07:37
07:37
Status Active
Estimated Runway Departure changed from Dec-18-2025 8:04 AM to Dec-18-2025 7:54 AM
Estimated Gate Departure changed from Dec-18-2025 7:40 AM to Dec-18-2025 7:32 AM
Actual Gate Departure changed to Dec-18-2025 7:32 AM
Estimated Gate Arrival changed from Dec-18-2025 8:54 AM to Dec-18-2025 8:31 AM
Status changed from Scheduled to Active
18 Dec
14:37
07:37
07:37
Time Adjustment
Estimated Runway Departure changed from Dec-18-2025 7:54 AM to Dec-18-2025 7:55 AM
Estimated Runway Arrival changed to Dec-18-2025 8:08 AM
Estimated Gate Arrival changed from Dec-18-2025 8:31 AM to Dec-18-2025 8:16 AM
18 Dec
13:18
06:18
06:18
Time Adjustment
Estimated Runway Departure changed to Dec-18-2025 8:04 AM
18 Dec
11:05
04:05
04:05
Gate Adjustment
Departure Gate changed from 6 to 7
18 Dec
07:07
00:07
00:07
Gate Adjustment
Arrival Gate changed from B80 to B70
18 Dec
06:51
23:51
23:51
Gate Adjustment
Arrival Gate changed from B68 to B80
18 Dec
06:37
23:37
23:37
Gate Adjustment
Departure Gate changed from 6 to 5
18 Dec
06:37
23:37
23:37
Gate Adjustment
Departure Gate changed from 5 to 6
18 Dec
06:19
23:19
23:19
Gate Adjustment
Departure Gate changed from 6 to 5
18 Dec
06:19
23:19
23:19
Gate Adjustment
Departure Gate changed from 5 to 6
18 Dec
06:07
23:07
23:07
Gate Adjustment
Departure Gate changed from 3 to 6
18 Dec
03:37
20:37
20:37
Gate Adjustment
Arrival Gate changed from B71 to B68
18 Dec
02:37
19:37
19:37
Gate Adjustment
Arrival Gate changed from B84 to B71
18 Dec
02:19
19:19
19:19
Gate Adjustment
Arrival Gate changed from B71 to B84
17 Dec
14:46
07:46
07:46
Time Adjustment
Scheduled Runway Departure changed from Dec-18-2025 7:50 AM to Dec-18-2025 8:04 AM
Scheduled Runway Arrival changed from Dec-18-2025 8:06 AM to Dec-18-2025 8:46 AM
17 Dec
14:41
07:41
07:41
Time Adjustment
Scheduled Runway Departure changed to Dec-18-2025 7:50 AM
Scheduled Runway Arrival changed to Dec-18-2025 8:06 AM
17 Dec
11:43
04:43
04:43
Equipment Adjustment
Tail Number changed from N487CA to N978SW
17 Dec
05:37
22:37
22:37
Equipment Adjustment
Tail Number changed from N917SW to N487CA
17 Dec
05:07
22:07
22:07
Gate Adjustment
Arrival Gate changed from B80 to B71
17 Dec
02:43
19:43
19:43
Gate Adjustment
Arrival Gate changed to B80
Baggage changed to 18
17 Dec
02:43
19:43
19:43
Equipment Adjustment
Tail Number changed from N914EV to N917SW
16 Dec
21:25
14:25
14:25
Equipment Adjustment
Tail Number changed from N953SW to N914EV
16 Dec
21:25
14:25
14:25
Equipment Adjustment
Tail Number changed from N465SW to N953SW
16 Dec
12:49
05:49
05:49
Gate Adjustment
Departure Gate changed to 3
16 Dec
11:43
04:43
04:43
Equipment Adjustment
Tail Number changed from N969SW to N465SW
16 Dec
11:43
04:43
04:43
Equipment Adjustment
Tail Number changed from N945SW to N969SW
16 Dec
04:07
21:07
21:07
Time Adjustment
Estimated Gate Departure changed to Dec-18-2025 7:40 AM
Estimated Gate Arrival changed to Dec-18-2025 8:54 AM
Tail Number changed to N945SW
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 7:40 AM
Scheduled Gate Arrival changed to Dec-18-2025 8:54 AM
Scheduled Equipment changed to CRJ