(UA) United Airlines 3921 Flight Details
Delayed by 12h 30m | Scheduled
Departure
ORD
Chicago O'Hare International Airport, IL, US
Flight Gate Times
07-Aug-2026
Scheduled
09:00
CDT
Estimated
21:30
CDT
Total Departure Delay: 12 h 30 mins
Flight Runway Times
07-Aug-2026
Scheduled
09:37
CDT
Estimated
22:07
CDT
Runway Delay: 12 h 30 mins
Terminal
1
Gate
C23
Craft Type
Boeing 757-300 (winglets) Passenger
75T
Flight Time
Scheduled
2h 59m
Arrival
IAH
Houston George Bush Intercontinental Airport, TX, US
Flight Gate Times
07-Aug-2026
Scheduled
11:59
CDT
Estimated
00:07
CDT
Total Arrival Delay: 12 h 8 mins
Flight Runway Times
07-Aug-2026
Scheduled
11:52
CDT
Estimated
00:00
CDT
Runway Delay: 12 h 8 mins
Terminal
E
Gate
21
Baggage Claim
C1
Tail Number
N57863
Flight Time
Estimated
2h 37m
Event Timeline
Date
Event
Data Updated
7 Aug
14:08
09:08
09:08
Time Adjustment
Estimated Runway Departure changed from Aug-07-2026 9:37 AM to Aug-07-2026 10:07 PM
Estimated Runway Arrival changed from Aug-07-2026 11:52 AM to Aug-08-2026 12:00 AM
Arrival Gate changed from 37 to 21
Arrival Terminal changed from C to E
7 Aug
11:42
06:42
06:42
Time Adjustment
Estimated Gate Departure changed from Aug-07-2026 9:00 AM to Aug-07-2026 9:30 PM
Estimated Gate Arrival changed from Aug-07-2026 11:59 AM to Aug-08-2026 12:07 AM
7 Aug
10:56
05:56
05:56
Gate Adjustment
Arrival Gate changed from 4 to 37
Arrival Terminal changed from E to C
7 Aug
10:49
05:49
05:49
Time Adjustment
Estimated Runway Departure changed to Aug-07-2026 9:37 AM
Estimated Runway Arrival changed to Aug-07-2026 11:52 AM
7 Aug
06:14
01:14
01:14
Gate Adjustment
Arrival Gate changed from 5 to 4
7 Aug
04:03
23:03
23:03
Gate Adjustment
Arrival Gate changed from 20 to 5
7 Aug
02:27
21:27
21:27
Gate Adjustment
Departure Gate changed to C23
Departure Terminal changed to 1
7 Aug
02:08
21:08
21:08
Gate Adjustment
Arrival Gate changed to 20
Arrival Terminal changed to E
Baggage changed to C1
7 Aug
02:07
21:07
21:07
Time Adjustment
Scheduled Runway Departure changed to Aug-07-2026 9:37 AM
Scheduled Runway Arrival changed to Aug-07-2026 11:52 AM
7 Aug
02:02
21:02
21:02
Equipment Adjustment
Tail Number changed to N57863
Actual Equipment changed to 75T
7 Aug
02:02
21:02
21:02
Record Created
7 Aug
02:02
21:02
21:02
Time Adjustment
Scheduled Gate Departure changed to Aug-07-2026 9:00 AM
Scheduled Gate Arrival changed to Aug-07-2026 11:59 AM
7 Aug
02:02
21:02
21:02
Time Adjustment
Estimated Gate Departure changed to Aug-07-2026 9:00 AM
Estimated Gate Arrival changed to Aug-07-2026 11:59 AM