(UA) United Airlines 5251 Flight Details
On time | Scheduled
Departure
DEN
Denver International Airport, CO, US
Flight Gate Times
03-Dec-2025
Scheduled
09:56
MST
Estimated
09:56
MST
Total Departure Delay: -
Flight Runway Times
03-Dec-2025
Scheduled
10:17
MST
Actual
--
Runway Delay: -
Terminal
-
Gate
B66
Craft Type
Embraer 175
E75
Flight Time
Scheduled
1h 43m
Arrival
SLC
Salt Lake City International Airport, UT, US
Flight Gate Times
03-Dec-2025
Scheduled
11:39
MST
Estimated
11:39
MST
Total Arrival Delay: -
Flight Runway Times
03-Dec-2025
Scheduled
11:33
MST
Actual
--
Runway Delay: -
Terminal
-
Gate
B12
Baggage Claim
4
Tail Number
N143SY
Flight Time
Estimated
1h 43m
Flight Notes
Operated by SkyWest Airlines on behalf of United Airlines
Also marketed as (AC) Air Canada 4012
Event Timeline
Date
Event
Data Updated
3 Dec
09:00
02:00
02:00
Gate Adjustment
Departure Gate changed from B67 to B66
3 Dec
06:06
23:06
23:06
Gate Adjustment
Departure Gate changed from B50 to B67
3 Dec
03:42
20:42
20:42
Gate Adjustment
Departure Gate changed from B43 to B50
2 Dec
19:12
12:12
12:12
Gate Adjustment
Departure Gate changed from B54 to B43
2 Dec
17:18
10:18
10:18
Equipment Adjustment
Tail Number changed from N138SY to N143SY
2 Dec
17:07
10:07
10:07
Time Adjustment
Scheduled Runway Departure changed from Dec-03-2025 10:06 AM to Dec-03-2025 10:17 AM
Scheduled Runway Arrival changed from Dec-03-2025 11:10 AM to Dec-03-2025 11:33 AM
2 Dec
17:01
10:01
10:01
Time Adjustment
Scheduled Runway Departure changed to Dec-03-2025 10:06 AM
Scheduled Runway Arrival changed to Dec-03-2025 11:10 AM
2 Dec
03:30
20:30
20:30
Gate Adjustment
Departure Gate changed to B54
2 Dec
01:12
18:12
18:12
Gate Adjustment
Baggage changed to 4
Tail Number changed from N143SY to N138SY
1 Dec
12:12
05:12
05:12
Gate Adjustment
Arrival Gate changed to B12
1 Dec
04:07
21:07
21:07
Time Adjustment
Estimated Gate Departure changed to Dec-03-2025 9:56 AM
Estimated Gate Arrival changed to Dec-03-2025 11:39 AM
Tail Number changed to N143SY
Actual Equipment changed to E75
30 Nov
18:46
11:46
11:46
Record Created
30 Nov
18:46
11:46
11:46
Time Adjustment
Scheduled Gate Departure changed to Dec-03-2025 9:56 AM
Scheduled Gate Arrival changed to Dec-03-2025 11:39 AM
Scheduled Equipment changed to E7W