Are you looking for the June 4th, 2026 UA 3639 New York to Richmond flight? Click here to go to our UA3639 New York to Richmond Flight Status page >

UA 3639 Chicago to St. Louis Flight Status

United Airlines Flight UA3639 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 September 1st, 2025.
Check the table below for UA3639's most recent flight history:

UA 3639 Flight Status & Schedule

Date Departure Arrival Status
Sep 01 13:33 14:22
Landed
Track >
Aug 31 13:22 14:10
Landed
Track >
Aug 29 13:31 14:17
Landed
Track >
Aug 28 13:23 14:07
Landed
Track >
Aug 27 13:33 14:22
Landed
Track >

United Airlines UA 3639 Chicago to St. Louis Flight Information

United Airlines Flight UA3639 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 UA3639 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 534 km/h / 332 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA3639 Chicago to St. Louis?

The Airportia On-Time Performance Rating for United Airlines Flight UA3639 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA3639 arriving at?

Flight UA3639 arrives at St. Louis Lambert International Airport (STL) Terminal 1.

When was the latest UA3639 flight?

The latest flight took off on Monday, September 1st, 2025 with the flight status being Landed on 14:22.

How else can the flight UA3639 be referenced as?

This United Airlines flight can also be referenced as UAL3639, UA 3639, UAL 3639.

How often is flight UA3639 delayed?

On average, 0% of all UA3639 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled UA3639 flight or baggage issues?

If your UA3639 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 UA3639 Flight Tracker above for more details.

United Airlines UA3639 News

UA3639 and Chicago ORD to St. Louis STL Flights

Flight UA3639 is code-shared by 3 airlines using the flight numbers AC3578, NH7450, NZ2891

Other flights departing from Chicago ORD: AA3778, UA2201, AA6292, AA1083

Other flights arriving at St. Louis STL: AA4367, NK2322, DL3885, AA2967

All flights connecting Chicago ORD to St. Louis STL.

UA3639 United Airlines Flight: Chicago to St. Louis Route Map

UA3639 United Airlines Flight Map: Chicago to St. Louis
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.