(UA) United Airlines 4639 Flight Details
On time | Scheduled
Departure
ATW
Appleton International Airport, WI, US
Flight Gate Times
21-Jul-2026
Scheduled
06:20
CDT
Estimated
06:20
CDT
Total Departure Delay: -
Flight Runway Times
21-Jul-2026
Scheduled
06:43
CDT
Actual
--
Runway Delay: -
Terminal
-
Gate
4
Craft Type
Canadair (Bombardier) Regional Jet 200
CR2
Flight Time
Scheduled
1h 31m
Arrival
ORD
Chicago O'Hare International Airport, IL, US
Flight Gate Times
21-Jul-2026
Scheduled
07:51
CDT
Estimated
07:51
CDT
Total Arrival Delay: -
Flight Runway Times
21-Jul-2026
Scheduled
07:32
CDT
Actual
--
Runway Delay: -
Terminal
1
Gate
B24
Baggage Claim
2
Tail Number
N957SW
Flight Time
Estimated
1h 31m
Flight Notes
Operated by SkyWest Airlines on behalf of United Airlines
Event Timeline
Date
Event
Data Updated
21 Jul
02:56
21:56
21:56
Equipment Adjustment
Tail Number changed from N951SW to N957SW
21 Jul
02:56
21:56
21:56
Equipment Adjustment
Tail Number changed from N957SW to N951SW
20 Jul
11:26
06:26
06:26
Time Adjustment
Scheduled Runway Departure changed from Jul-21-2026 6:23 AM to Jul-21-2026 6:43 AM
Scheduled Runway Arrival changed from Jul-21-2026 7:00 AM to Jul-21-2026 7:32 AM
20 Jul
11:21
06:21
06:21
Time Adjustment
Scheduled Runway Departure changed to Jul-21-2026 6:23 AM
Scheduled Runway Arrival changed to Jul-21-2026 7:00 AM
20 Jul
08:20
03:20
03:20
Equipment Adjustment
Tail Number changed from N944SW to N957SW
20 Jul
08:20
03:20
03:20
Equipment Adjustment
Tail Number changed from N957SW to N944SW
20 Jul
08:20
03:20
03:20
Equipment Adjustment
Tail Number changed from N944SW to N957SW
20 Jul
08:20
03:20
03:20
Equipment Adjustment
Tail Number changed from N957SW to N944SW
20 Jul
04:20
23:20
23:20
Gate Adjustment
Arrival Gate changed from F3 to B24
Arrival Terminal changed from 2 to 1
20 Jul
03:20
22:20
22:20
Gate Adjustment
Arrival Gate changed from F25 to F3
20 Jul
01:08
20:08
20:08
Gate Adjustment
Arrival Gate changed from F27 to F25
19 Jul
22:38
17:38
17:38
Gate Adjustment
Arrival Gate changed from B24 to F27
Arrival Terminal changed from 1 to 2
19 Jul
18:56
13:56
13:56
Gate Adjustment
Arrival Gate changed to B24
Arrival Terminal changed from 2 to 1
Baggage changed to 2
19 Jul
04:08
23:08
23:08
Time Adjustment
Estimated Gate Departure changed to Jul-21-2026 6:20 AM
Estimated Gate Arrival changed to Jul-21-2026 7:51 AM
Departure Gate changed to 4
Tail Number changed to N957SW
Actual Equipment changed to CR2
18 Jul
18:50
13:50
13:50
Record Created
18 Jul
18:50
13:50
13:50
Time Adjustment
Scheduled Gate Departure changed to Jul-21-2026 6:20 AM
Scheduled Gate Arrival changed to Jul-21-2026 7:51 AM
Arrival Terminal changed to 2
Scheduled Equipment changed to CRJ