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UA4423 Flight Status ( St. Louis to Chicago )

ARRIVED 8 HOUR 8 MINUTES AGO
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Departure (UA4423 Flight Schedule)

Lambert St Louis Intl ()

flag St. Louis, United States

06:25 CDT

Tue 17-Mar-2026

 
CDT 00:00:00 DAY
arr   

Arrival (UA4423 Flight Schedule)

Chicago Ohare Intl ()

flag Chicago, United States

07:58 CDT

Tue 17-Mar-2026

 
CDT 00:00:00 DAY

Flight Radar Checker UA 4423

Live Flight Tracker Map

Flight UA4423 from St. Louis to Chicago is operated by United Airlines. Scheduled time of departure from Lambert St Louis Intl is 06:25 CDT and scheduled time of arrival in Chicago Ohare Intl is 07:58 CDT. The duration of the flight is 1 hour 33 minutes.

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from Chicago to St. Louis

Flight Departure Arrival

07:38
Chicago Ohare Intl
()
Lambert St Louis Intl
()

07:51
Chicago Ohare Intl
()
Lambert St Louis Intl
()

08:32
Chicago Midway Intl
()
Lambert St Louis Intl
()

08:33
Chicago Midway Intl
()
Lambert St Louis Intl
()

08:35
Chicago Ohare Intl
()
Lambert St Louis Intl
()

09:00
Chicago Midway Intl
()
Lambert St Louis Intl
()

09:03
Chicago Ohare Intl
()
Lambert St Louis Intl
()

09:15
Chicago Midway Intl
()
Lambert St Louis Intl
()

09:30
Chicago Midway Intl
()
Lambert St Louis Intl
()

09:54
Chicago Midway Intl
()
Lambert St Louis Intl
()

09:54
Chicago Midway Intl
()
Lambert St Louis Intl
()

10:03
Chicago Ohare Intl
()
Lambert St Louis Intl
()

10:36
Chicago Ohare Intl
()
Lambert St Louis Intl
()

11:15
Chicago Midway Intl
()
Lambert St Louis Intl
()

11:30
Chicago Midway Intl
()
Lambert St Louis Intl
()

11:54
Waukegan Rgnl
()
Lambert St Louis Intl
()

12:21
Chicago Ohare Intl
()
Lambert St Louis Intl
()

12:30
Chicago Midway Intl
()
Lambert St Louis Intl
()

13:39
Chicago Ohare Intl
()
Lambert St Louis Intl
()

13:43
Chicago Ohare Intl
()
Lambert St Louis Intl
()

13:43
Chicago Ohare Intl
()
Lambert St Louis Intl
()

13:50
Chicago Ohare Intl
()
Lambert St Louis Intl
()

14:29
Chicago Ohare Intl
()
Lambert St Louis Intl
()

14:40
Chicago Midway Intl
()
Lambert St Louis Intl
()

14:42
Chicago Ohare Intl
()
Lambert St Louis Intl
()

14:54
Chicago Midway Intl
()
Lambert St Louis Intl
()

15:31
Chicago Ohare Intl
()
Lambert St Louis Intl
()

15:35
Chicago Ohare Intl
()
Lambert St Louis Intl
()

15:50
Chicago Midway Intl
()
Lambert St Louis Intl
()

15:55
Chicago Midway Intl
()
Lambert St Louis Intl
()

16:02
Chicago Ohare Intl
()
Lambert St Louis Intl
()

16:23
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:00
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:44
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:44
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:53
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:58
Chicago Ohare Intl
()
Lambert St Louis Intl
()

17:58
Chicago Ohare Intl
()
Lambert St Louis Intl
()

18:08
Chicago Ohare Intl
()
Lambert St Louis Intl
()

18:55
Chicago Midway Intl
()
Lambert St Louis Intl
()

19:14
Chicago Ohare Intl
()
Lambert St Louis Intl
()

20:00
Chicago Midway Intl
()
Lambert St Louis Intl
()

21:05
Chicago Ohare Intl
()
Lambert St Louis Intl
()

21:07
Chicago Ohare Intl
()
Lambert St Louis Intl
()

21:12
Chicago Ohare Intl
()
Lambert St Louis Intl
()

21:30
Waukegan Rgnl
()
Lambert St Louis Intl
()

21:40
Chicago Ohare Intl
()
Lambert St Louis Intl
()

21:42
Chicago Ohare Intl
()
Lambert St Louis Intl
()

21:45
Chicago Midway Intl
()
Lambert St Louis Intl
()

21:54
Chicago Midway Intl
()
Lambert St Louis Intl
()

22:20
Chicago Midway Intl
()
Lambert St Louis Intl
()

22:55
Chicago Midway Intl
()
Lambert St Louis Intl
()

22:59
Chicago Ohare Intl
()
Lambert St Louis Intl
()

23:10
Chicago Midway Intl
()
Lambert St Louis Intl
()

23:10
Chicago Midway Intl
()
Lambert St Louis Intl
()

23:48
Chicago Ohare Intl
()
Lambert St Louis Intl
()

History Flight Information for UA4423 from Flight Scanner System

Date Flight Departure Airport Arrival Airport Scheduled Plane Estimated
Departure Arrival Departure Arrival
Wed, 18 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT
Tue, 17 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT
Mon, 16 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 06:38 CDT 09:01 CDT
Sun, 15 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 07:00 CDT 07:58 CDT
Sat, 14 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 06:34 CDT 07:22 CDT
Fri, 13 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 07:22 CDT 08:15 CDT
Thu, 12 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 06:34 CDT 07:32 CDT
Wed, 11 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT 07:17 CDT 08:10 CDT
Tue, 10 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT
Mon, 09 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CDT 07:58 CDT
Mon, 09 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 05:25 CDT 06:58 CDT 06:45 CDT 07:40 CDT
Sun, 08 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 05:25 CDT 06:58 CDT 06:40 CDT 07:42 CDT
Sat, 07 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 09:21 CST 10:22 CST
Fri, 06 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 09:18 CST 09:18 CST
Thu, 05 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:59 CST 09:01 CST
Wed, 04 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:37 CST 08:41 CST
Tue, 03 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:27 CST 10:34 CST
Mon, 02 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:32 CST 08:26 CST
Sun, 01 Mar UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:31 CST 08:22 CST
Sat, 28 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:27 CST 08:24 CST
Fri, 27 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:29 CST 08:27 CST
Thu, 26 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:31 CST 08:20 CST
Wed, 25 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:28 CST 08:26 CST
Tue, 24 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:20 CST 08:20 CST
Mon, 23 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:29 CST 08:56 CST
Sun, 22 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:34 CST 08:40 CST
Sat, 21 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:27 CST 08:23 CST
Fri, 20 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:28 CST 08:33 CST
Thu, 19 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:24 CST 08:16 CST
Wed, 18 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:26 CST 08:25 CST
Tue, 17 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:29 CST 08:17 CST
Mon, 16 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:30 CST 08:28 CST
Sun, 15 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 09:00 CST 09:58 CST
Sat, 14 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 07:32 CST 08:28 CST
Fri, 13 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:25 CST 07:58 CST 08:18 CST 09:18 CST
Thu, 12 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:03 CST 07:42 CST 08:35 CST
Wed, 11 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:36 CST 11:07 CST
Tue, 10 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST
Mon, 09 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 09:17 CST 10:31 CST
Sun, 08 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:51 CST 09:44 CST
Sat, 07 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:32 CST 08:29 CST
Fri, 06 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:33 CST 08:36 CST
Thu, 05 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:40 CST 08:44 CST
Wed, 04 Feb UA4423 Chicago Ohare Intl () Adams Fld () 08:45 CST 11:02 CST 10:08 CST 11:08 CST
Tue, 03 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:57 CST 08:41 CST
Mon, 02 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:34 CST 08:36 CST
Sun, 01 Feb UA4423 Lambert St Louis Intl () Chicago Ohare Intl () 06:30 CST 08:05 CST 07:35 CST 09:21 CST

Disclaimer for UA4423 Flight Radar Data

Flight UA4423 from Lambert St Louis Intl to Chicago Ohare Intl data is collected from different sources. The data is for informational purposes only and PlaneMapper is not responsible for the accuracy and reliability of flight UA4423 data.