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UA1236 Flight Status ( St. Louis to Denver )

EXPECTED TO ARRIVE IN 48 MINUTES
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Departure (UA1236 Flight Schedule)

Lambert St Louis Intl ()

flag St. Louis, United States

17:59 CST

Fri 20-Feb-2026

 LATE 19 min
CST 00:00:00 DAY
arr   

Arrival (UA1236 Flight Schedule)

Denver Intl ()

flag Denver, United States

19:34 MST

Fri 20-Feb-2026

 LATE 27 min
MST 00:00:00 DAY

Flight Radar Checker UA 1236

Live Flight Tracker Map

Flight UA1236 from St. Louis to Denver is operated by United Airlines. Scheduled time of departure from Lambert St Louis Intl is 17:59 CST and scheduled time of arrival in Denver Intl is 19:34 MST. The duration of the flight is 2 hours 35 minutes.

 

4.5 out of 5 stars / 10 votes

Flight Finder
from Denver to St. Louis

Flight Departure Arrival

00:50
Denver Intl
()
Lambert St Louis Intl
()

09:30
Denver Intl
()
Lambert St Louis Intl
()

10:10
Denver Intl
()
Lambert St Louis Intl
()

10:15
Denver Intl
()
Lambert St Louis Intl
()

10:50
Denver Intl
()
Lambert St Louis Intl
()

11:00
Denver Intl
()
Lambert St Louis Intl
()

11:18
Denver Intl
()
Lambert St Louis Intl
()

12:30
Denver Intl
()
Lambert St Louis Intl
()

13:16
Denver Intl
()
Lambert St Louis Intl
()

13:55
Denver Intl
()
Lambert St Louis Intl
()

14:15
Denver Intl
()
Lambert St Louis Intl
()

14:18
Centennial
()
Lambert St Louis Intl
()

16:20
Denver Intl
()
Lambert St Louis Intl
()

16:55
Denver Intl
()
Lambert St Louis Intl
()

17:10
Denver Intl
()
Lambert St Louis Intl
()

19:10
Denver Intl
()
Lambert St Louis Intl
()

20:10
Denver Intl
()
Lambert St Louis Intl
()

20:15
Denver Intl
()
Lambert St Louis Intl
()

20:58
Denver Intl
()
Lambert St Louis Intl
()

23:35
Denver Intl
()
Lambert St Louis Intl
()

History Flight Information for UA1236 from Flight Scanner System

Date Flight Departure Airport Arrival Airport Scheduled Plane Estimated
Departure Arrival Departure Arrival
Fri, 20 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST
Fri, 20 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:34 MST 18:34 CST 19:12 MST
Thu, 19 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 20:49 MST 22:46 MST
Thu, 19 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:34 MST (Boeing B738) 17:51 CST 19:05 MST
Wed, 18 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 21:03 MST 23:54 MST
Wed, 18 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:34 MST (Boeing B738) 18:06 CST 19:18 MST
Tue, 17 Feb UA1236 Lambert St Louis Intl () Denver Intl () 16:30 CST 18:05 MST (Airbus A320) 19:28 CST 21:46 MST
Mon, 16 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 20:34 MST 22:39 MST
Mon, 16 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:34 MST (Boeing B738) 17:49 CST 19:06 MST
Sun, 15 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 20:49 MST 22:40 MST
Sun, 15 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:35 MST
Sat, 14 Feb UA1236 Lambert St Louis Intl () Denver Intl () 16:30 CST 18:04 MST (Boeing B738) 16:34 CST 18:03 MST
Fri, 13 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 20:41 MST 22:24 MST
Fri, 13 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:35 MST 18:00 CST 19:18 MST
Thu, 12 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:44 MST 22:50 MST 20:44 MST 22:26 MST
Thu, 12 Feb UA1236 Lambert St Louis Intl () Denver Intl () 17:59 CST 19:34 MST (Boeing B739) 18:02 CST 19:20 MST
Wed, 11 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 23:00 MST
Wed, 11 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 17:46 PST 20:36 MST
Tue, 10 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:10 PST 18:55 MST
Mon, 09 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:13 PST 19:07 MST
Sun, 08 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:44 MST 22:31 MST
Sun, 08 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:04 PST 19:05 MST
Sat, 07 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 15:56 PST 18:54 MST
Fri, 06 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 23:50 MST 01:39 MST
Fri, 06 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:07 PST 19:10 MST
Thu, 05 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:54 MST 22:32 MST
Thu, 05 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:17 PST 19:16 MST
Wed, 04 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST
Wed, 04 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST ( A319) 18:38 PST 21:51 MST
Tue, 03 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:08 PST 19:17 MST
Mon, 02 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:10 PST 19:01 MST
Sun, 01 Feb UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:47 MST 22:28 MST
Sun, 01 Feb UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:12 PST 19:14 MST
Sat, 31 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:10 PST 19:07 MST
Fri, 30 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:09 MST 22:47 MST
Fri, 30 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:12 PST 19:24 MST
Thu, 29 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:48 MST 22:34 MST
Thu, 29 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:17 PST 19:20 MST
Wed, 28 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:55 MST 22:41 MST
Wed, 28 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:09 PST 18:49 MST
Tue, 27 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:10 PST 19:12 MST
Mon, 26 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:05 PST 19:11 MST
Sun, 25 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:45 MST 23:36 MST
Sun, 25 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:24 PST 19:16 MST
Sat, 24 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:04 PST 19:27 MST
Fri, 23 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST (Boeing B739) 21:33 MST 23:44 MST
Fri, 23 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:16 PST 19:07 MST
Thu, 22 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST (Boeing B739) 21:01 MST 22:39 MST
Thu, 22 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A320) 16:09 PST 18:54 MST
Wed, 21 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:01 MST 22:34 MST
Wed, 21 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A320) 16:03 PST 19:00 MST
Tue, 20 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:06 PST 19:09 MST
Mon, 19 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:46 MST 23:13 MST
Mon, 19 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:26 PST 19:27 MST
Sun, 18 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST 16:12 PST 19:14 MST
Sat, 17 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 17:42 PST 20:46 MST
Fri, 16 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:20 MST 22:44 MST
Fri, 16 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A320) 16:08 PST 19:18 MST
Thu, 15 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:59 MST 22:36 MST
Thu, 15 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST ( A319) 16:08 PST 19:09 MST
Wed, 14 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:02 MST 22:51 MST
Wed, 14 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:06 PST 19:21 MST
Tue, 13 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:02 PST 19:08 MST
Mon, 12 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A320) 16:04 PST 19:19 MST
Sun, 11 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:43 MST 22:22 MST
Sun, 11 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A320) 16:11 PST 19:13 MST
Sat, 10 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:03 PST 19:12 MST
Fri, 09 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 21:19 MST 22:54 MST
Fri, 09 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:05 PST 19:19 MST
Thu, 08 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST
Thu, 08 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 17:34 PST 20:28 MST
Wed, 07 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:55 MST 22:59 MST 20:49 MST 22:33 MST
Wed, 07 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 16:01 PST 19:00 MST
Tue, 06 Jan UA1236 John Wayne Arpt Orange Co () Denver Intl () 16:06 PST 19:30 MST (Airbus A319) 15:59 PST 18:58 MST
Mon, 05 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:45 MST 22:49 MST 20:36 MST 23:19 MST
Mon, 05 Jan UA1236 La Guardia () Denver Intl () 16:48 EST 19:26 MST 17:26 EST 19:48 MST
Mon, 05 Jan UA1236 Chicago Ohare Intl () La Guardia () 11:00 CST 14:18 EST (Boeing B738) 11:37 CST 14:08 EST
Sun, 04 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:45 MST 22:49 MST (Boeing B738) 21:04 MST 22:57 MST
Sun, 04 Jan UA1236 La Guardia () Denver Intl () 16:48 EST 19:26 MST 17:13 EST 19:19 MST
Sun, 04 Jan UA1236 Chicago Ohare Intl () La Guardia () 11:00 CST 14:18 EST (Boeing B738) 12:42 CST 15:08 EST
Sat, 03 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:27 MST 22:31 MST 20:46 MST 22:35 MST
Sat, 03 Jan UA1236 La Guardia () Denver Intl () 16:52 EST 19:30 MST 17:13 EST 19:09 MST
Fri, 02 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:45 MST 22:49 MST (Boeing B739) 20:44 MST 22:29 MST
Fri, 02 Jan UA1236 La Guardia () Denver Intl () 16:48 EST 19:26 MST 16:58 EST 18:50 MST
Thu, 01 Jan UA1236 Denver Intl () Phoenix Sky Harbor Intl () 20:45 MST 22:49 MST (Boeing B739) 20:50 MST 22:44 MST
Thu, 01 Jan UA1236 La Guardia () Denver Intl () 16:48 EST 19:26 MST 17:08 EST 19:12 MST
Wed, 31 Dec UA1236 San Francisco Intl () Dallas Fort Worth Intl () 18:55 PST 00:24 CST (Boeing B738) 20:12 PST 01:16 CST

Disclaimer for UA1236 Flight Radar Data

Flight UA1236 from Lambert St Louis Intl to Denver 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 UA1236 data.