(UA) United Airlines 2121 Flight Details
On time | Scheduled
Departure
DEN
Denver International Airport, CO, US
Flight Gate Times
30-Jan-2026
Scheduled
18:00
MST
Estimated
18:00
MST
Total Departure Delay: -
Flight Runway Times
30-Jan-2026
Scheduled
18:15
MST
Actual
--
Runway Delay: -
Terminal
-
Gate
B63
Craft Type
Boeing 737-800 (Scimitar Winglets) Passenger
7S8
Flight Time
Scheduled
2h 37m
Arrival
GRR
Grand Rapids Gerald R. Ford International Airport, MI, US
Flight Gate Times
30-Jan-2026
Scheduled
22:37
EST
Estimated
22:37
EST
Total Arrival Delay: -
Flight Runway Times
30-Jan-2026
Scheduled
22:32
EST
Actual
--
Runway Delay: -
Terminal
-
Gate
A3
Baggage Claim
-
Tail Number
N87512
Flight Time
Estimated
2h 37m
Event Timeline
Date
Event
Data Updated
30 Jan
07:08
00:08
02:08
Gate Adjustment
Arrival Gate changed to A3
30 Jan
01:06
18:06
20:06
Time Adjustment
Scheduled Runway Arrival changed from Jan-30-2026 10:19 PM to Jan-30-2026 10:32 PM
30 Jan
01:01
18:01
20:01
Time Adjustment
Scheduled Runway Departure changed to Jan-30-2026 6:15 PM
Scheduled Runway Arrival changed to Jan-30-2026 10:19 PM
29 Jan
23:50
16:50
18:50
Gate Adjustment
Departure Gate changed to B63
29 Jan
17:39
10:39
12:39
Equipment Adjustment
Tail Number changed from N34222 to N87512
28 Jan
08:55
01:55
03:55
Equipment Adjustment
Tail Number changed from N73251 to N34222
27 Jan
21:49
14:49
16:49
Equipment Adjustment
Tail Number changed to N73251
Actual Equipment changed to 7S8
27 Jan
21:49
14:49
16:49
Time Adjustment
Estimated Gate Departure changed to Jan-30-2026 6:00 PM
Estimated Gate Arrival changed to Jan-30-2026 10:37 PM
27 Jan
18:46
11:46
13:46
Record Created
27 Jan
18:46
11:46
13:46
Time Adjustment
Scheduled Gate Departure changed to Jan-30-2026 6:00 PM
Scheduled Gate Arrival changed to Jan-30-2026 10:37 PM
Scheduled Equipment changed to 738