(UA) United Airlines 4291 Flight Details
On time | Scheduled
Departure
BUF
Buffalo Niagara International Airport, NY, US
Flight Gate Times
21-Sep-2026
Scheduled
14:53
EDT
Estimated
14:53
EDT
Total Departure Delay: -
Flight Runway Times
21-Sep-2026
Scheduled
15:06
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
12
Craft Type
Embraer EMB-145XR
E45
Flight Time
Scheduled
1h 20m
Arrival
IAD
Washington Dulles International Airport, VA, US
Flight Gate Times
21-Sep-2026
Scheduled
16:13
EDT
Estimated
16:13
EDT
Total Arrival Delay: -
Flight Runway Times
21-Sep-2026
Scheduled
16:07
EDT
Actual
--
Runway Delay: -
Terminal
-
Gate
A4B
Baggage Claim
5
Tail Number
N21129
Flight Time
Estimated
1h 20m
Flight Notes
Operated by CommuteAir on behalf of United Airlines
Also marketed as (LH) Lufthansa 7751, (SN) Brussels Airlines 8961
Event Timeline
Date
Event
Data Updated
21 Sep
08:26
04:26
04:26
Gate Adjustment
Departure Gate changed to 12
21 Sep
03:50
23:50
23:50
Gate Adjustment
Arrival Gate changed from A4A to A4B
21 Sep
03:44
23:44
23:44
Equipment Adjustment
Tail Number changed from N11193 to N21129
21 Sep
03:26
23:26
23:26
Gate Adjustment
Arrival Gate changed from A4B to A4A
21 Sep
02:14
22:14
22:14
Gate Adjustment
Arrival Gate changed from A5A to A4B
20 Sep
20:15
16:15
16:15
Gate Adjustment
Arrival Gate changed to A5A
Baggage changed to 5
20 Sep
19:01
15:01
15:01
Time Adjustment
Scheduled Runway Departure changed to Sep-21-2026 3:06 PM
Scheduled Runway Arrival changed to Sep-21-2026 4:07 PM
20 Sep
10:08
06:08
06:08
Equipment Adjustment
Tail Number changed from N21197 to N11193
20 Sep
08:50
04:50
04:50
Equipment Adjustment
Tail Number changed from N31131 to N21197
20 Sep
08:44
04:44
04:44
Equipment Adjustment
Tail Number changed from N11193 to N31131
20 Sep
01:15
21:15
21:15
Equipment Adjustment
Tail Number changed from N21144 to N11193
19 Sep
15:50
11:50
11:50
Time Adjustment
Estimated Gate Departure changed to Sep-21-2026 2:53 PM
Estimated Gate Arrival changed to Sep-21-2026 4:13 PM
Tail Number changed to N21144
Actual Equipment changed to E45
18 Sep
18:49
14:49
14:49
Record Created
18 Sep
18:49
14:49
14:49
Time Adjustment
Scheduled Gate Departure changed to Sep-21-2026 2:53 PM
Scheduled Gate Arrival changed to Sep-21-2026 4:13 PM
Scheduled Equipment changed to ERJ