(UA) United Airlines 4291 Flight Details
On time | Departed
Departure
BUF
Buffalo Niagara International Airport, NY, US
Flight Gate Times
09-Jan-2026
Scheduled
14:49
EST
Actual
14:37
EST
Total Departure Delay: -
Flight Runway Times
09-Jan-2026
Scheduled
15:02
EST
Estimated
15:02
EST
Runway Delay: -
Terminal
-
Gate
10
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 30m
Arrival
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
09-Jan-2026
Scheduled
16:19
EST
Estimated
16:19
EST
Total Arrival Delay: -
Flight Runway Times
09-Jan-2026
Scheduled
16:12
EST
Estimated
16:03
EST
Runway Delay: -
Terminal
-
Gate
A4E
Baggage Claim
6
Tail Number
N21154
Flight Time
Estimated
1h 42m
Flight Notes
Operated by CommuteAir on behalf of United Airlines
Also marketed as (AV) Avianca 2044, (LH) Lufthansa 7751, (SN) Brussels Airlines 8961
Event Timeline
Date
Event
Data Updated
9 Jan
19:59
14:59
14:59
Time Adjustment
Estimated Runway Arrival changed from Jan-09-2026 4:00 PM to Jan-09-2026 4:03 PM
9 Jan
19:51
14:51
14:51
Time Adjustment
Estimated Runway Arrival changed from Jan-09-2026 3:45 PM to Jan-09-2026 4:00 PM
9 Jan
19:43
14:43
14:43
Status Active
Estimated Gate Departure changed from Jan-09-2026 2:49 PM to Jan-09-2026 2:37 PM
Actual Gate Departure changed to Jan-09-2026 2:37 PM
Estimated Gate Arrival changed from Jan-09-2026 3:52 PM to Jan-09-2026 4:19 PM
Status changed from Scheduled to Active
9 Jan
19:39
14:39
14:39
Time Adjustment
Estimated Runway Arrival changed to Jan-09-2026 4:12 PM
9 Jan
19:39
14:39
14:39
Time Adjustment
Estimated Runway Arrival changed from Jan-09-2026 4:12 PM to Jan-09-2026 3:45 PM
Estimated Gate Arrival changed from Jan-09-2026 4:19 PM to Jan-09-2026 3:52 PM
9 Jan
18:41
13:41
13:41
Time Adjustment
Estimated Runway Departure changed to Jan-09-2026 3:02 PM
9 Jan
18:09
13:09
13:09
Gate Adjustment
Baggage changed from 3 to 6
9 Jan
15:13
10:13
10:13
Gate Adjustment
Departure Gate changed to 10
9 Jan
13:49
08:49
08:49
Gate Adjustment
Arrival Gate changed from A3C to A4E
9 Jan
10:13
05:13
05:13
Equipment Adjustment
Tail Number changed from N13202 to N21154
9 Jan
10:07
05:07
05:07
Equipment Adjustment
Tail Number changed from N27190 to N13202
9 Jan
08:49
03:49
03:49
Gate Adjustment
Arrival Gate changed from A3A to A3C
9 Jan
06:49
01:49
01:49
Equipment Adjustment
Tail Number changed from N23139 to N27190
9 Jan
00:01
19:01
19:01
Gate Adjustment
Arrival Gate changed from A1C to A3A
8 Jan
21:25
16:25
16:25
Gate Adjustment
Arrival Gate changed to A1C
Baggage changed to 3
8 Jan
19:56
14:56
14:56
Time Adjustment
Scheduled Runway Departure changed from Jan-09-2026 2:58 PM to Jan-09-2026 3:02 PM
Scheduled Runway Arrival changed from Jan-09-2026 3:47 PM to Jan-09-2026 4:12 PM
8 Jan
19:51
14:51
14:51
Time Adjustment
Scheduled Runway Departure changed to Jan-09-2026 2:58 PM
Scheduled Runway Arrival changed to Jan-09-2026 3:47 PM
8 Jan
06:49
01:49
01:49
Time Adjustment
Estimated Gate Departure changed to Jan-09-2026 2:49 PM
Estimated Gate Arrival changed to Jan-09-2026 4:19 PM
Tail Number changed from N14186 to N23139
8 Jan
05:14
00:14
00:14
Equipment Adjustment
Tail Number changed to N14186
Actual Equipment changed to E45
6 Jan
18:47
13:47
13:47
Record Created
6 Jan
18:47
13:47
13:47
Time Adjustment
Scheduled Gate Departure changed to Jan-09-2026 2:49 PM
Scheduled Gate Arrival changed to Jan-09-2026 4:19 PM
Scheduled Equipment changed to ERJ