UA 4576 St. Louis to Chicago Flight Status

United Airlines Flight UA4576 from St. Louis Lambert International Airport STL to Chicago O'Hare International Airport ORD is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on August 16th, 2025.
Check the table below for UA4576's most recent flight history:

UA 4576 Flight Status & Schedule

Date Departure Arrival Status
Aug 16 19:40 16:50
Unknown
Track >
Aug 09 16:37 17:34
Landed Late
Track >

United Airlines UA 4576 St. Louis to Chicago Flight Information

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

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

The average flight time from St. Louis to Chicago is 57 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 357 km/h / 222 mph.

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

The Airportia On-Time Performance Rating for United Airlines Flight UA4576 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA4576 arriving at?

Flight UA4576 arrives at Chicago O'Hare International Airport (ORD) Terminal 2.

When was the latest UA4576 flight?

The latest flight took off on Saturday, August 16th, 2025 with the flight status being Unknown on 16:50.

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, 50% of all UA4576 flights are delayed. The average delay is 44 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 St. Louis STL to Chicago ORD Flights

Flight UA4576 is code-shared by 4 airlines using the flight numbers AC4915, EK6401, NH7467, NZ2904

Other flights departing from St. Louis STL: WN2001, WN449, DL4854, WN254

Other flights arriving at Chicago ORD: UA6940, UA3516, UA1057, UA2154

All flights connecting St. Louis STL to Chicago ORD.

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

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