UA 4576 Chicago to St. Louis Flight Status

United Airlines Flight UA4576 from Chicago O'Hare International Airport ORD to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 31st, 2026.
Check the table below for UA4576's most recent flight history:

UA 4576 Flight Status & Schedule

Date Departure Arrival Status
May 31 22:01 22:44
Landed
Track >
May 30 21:58 22:45
Landed
Track >
May 29 21:43 22:27
Landed
Track >
May 28 22:04 22:48
Landed
Track >
May 27 22:27 23:13
Landed Late
Track >

United Airlines UA 4576 Chicago to St. Louis Flight Information

United Airlines Flight UA4576 connects Chicago, United States to St. Louis, United States, taking off from Chicago O'Hare International Airport ORD and landing at St. Louis Lambert International Airport STL.

How long is the UA4576 flight from Chicago to St. Louis?

The average flight time from Chicago to St. Louis is 46 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 538 km/h / 334 mph.

How many UA4576 flights are operated per week?

4 flights per week. The flight UA4576 is operated on Monday, Friday, Saturday and Sunday.

What is the On-Time Performance (OTP) of United Airlines Flight UA4576 Chicago to St. Louis?

The Airportia On-Time Performance Rating for United Airlines Flight UA4576 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA4576 arriving at?

Flight UA4576 arrives at St. Louis Lambert International Airport (STL) Terminal 1.

When was the latest UA4576 flight?

The latest flight took off on Monday, June 1st, 2026 with the flight status being Landed on 22:44.

How else can the flight UA4576 be referenced as?

This United Airlines flight can also be referenced as UAL4576, UA 4576, UAL 4576.

How often is flight UA4576 delayed?

On average, 30% of all UA4576 flights are delayed. The average delay is 23 minutes.

Can I get compensation for my delayed or cancelled UA4576 flight or baggage issues?

If your UA4576 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our UA4576 Flight Tracker above for more details.

UA4576 and Chicago ORD to St. Louis STL Flights

Flight UA4576 is code-shared by 3 airlines using the flight numbers AC4930, LH7826, NZ2901

Other flights departing from Chicago ORD: AA6357, AA3873, UA5274, UA2829

Other flights arriving at St. Louis STL: AA1594, UA6187, WN3044, WN3396

All flights connecting Chicago ORD to St. Louis STL.

UA4576 United Airlines Flight: Chicago to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.