UA4537 Flight Status United Airlines: St. Louis to Chicago (UAL4537)

UA 4537 St. Louis to Chicago Flight Status

Not scheduled today. Latest flight: March 28th, 2026 ; recent history is in the table below.

UA 4537 Flight Status & Schedule United Airlines St. Louis to Chicago

Date From To Departure Arrival Status Details
Mar 28 STL ORD 05:16 06:08 Landed Track >
Mar 27 STL ORD 05:13 05:58 Landed Track >
Mar 26 STL ORD 05:23 06:12 Landed Track >
Mar 25 STL ORD 05:10 06:01 Landed Track >
Mar 22 STL ORD 05:13 05:58 Landed Track >
Mar 21 STL ORD 05:09 05:54 Landed Track >
Mar 20 STL ORD 05:17 06:08 Landed Track >
Mar 19 STL ORD 05:45 06:31 Landed Track >
Mar 18 STL ORD 05:25 06:19 Landed Track >
Mar 15 STL ORD 05:23 06:05 Landed Track >

United Airlines' St. Louis–Chicago flight covers 415 km (258 mi). The timetable allows 1 h 30 min, but the flight usually takes about 50 min, so it often makes up time. It is not flying today; the last flight, on 28 March 2026, landed on time.

< All St. Louis STL Departures All Chicago ORD Arrivals >

About UA 4537

Route
St. Louis Lambert International Airport STL to Chicago O'Hare International Airport ORD
Distance
415 km (258 mi)
Typical flight time
50 min
On time
10 of the last 10
Usually departs from
Terminal 1

UA 4537 FAQ

How long is the UA4537 flight?
The timetable allows 1 h 30 min. St. Louis to Chicago is 415 km (258 mi).
How often is UA4537 late?
None of the last 10 flights arrived 15 or more minutes late.
Which terminal does UA4537 use?
It usually leaves from Terminal 1 at St. Louis Lambert International Airport (STL) and arrives at Terminal 2 at Chicago O'Hare International Airport (ORD). Check the flight card above for today's terminal and gate.
What other flight numbers does UA4537 have?
Also listed as UAL4537 (United Airlines' ICAO code) and UA 4537.

UA4537 and St. Louis STL to Chicago ORD Flights

Flight UA4537 is code-shared by 1 airline using the flight number AC4919

Other flights departing from St. Louis STL: WN2364, WN1555

Other flights arriving at Chicago ORD: AA1106, AA3398, AA1312, AA4478

All flights connecting St. Louis STL to Chicago ORD.