UA 4559 Louisville to Chicago Flight Status

United Airlines Flight UA4559 from Louisville International Airport SDF to Chicago O'Hare International Airport ORD is not scheduled for today July 18th, 2026.
The last time the flight was scheduled was on May 20th, 2026.
Check the table below for UA4559's most recent flight history:

UA 4559 Flight Status & Schedule

Date Departure Arrival Status
May 20 20:26 20:21
Landed
Track >
May 18 22:23 22:26
Delayed
Track >
May 17 19:55 19:52
Landed
Track >
May 15 19:56 20:02
Landed
Track >
May 14 19:57 19:59
Landed
Track >

United Airlines UA 4559 Louisville to Chicago Flight Information

United Airlines Flight UA4559 connects Louisville, United States to Chicago, United States, taking off from Louisville International Airport SDF and landing at Chicago O'Hare International Airport ORD.

How long is the UA4559 flight from Louisville to Chicago?

The average flight time from Louisville to Chicago is 1 hour and 13 minutes. The flight distance is 461 km / 287 miles and the average flight speed is 406 km/h / 252 mph.

What is the On-Time Performance (OTP) of United Airlines Flight UA4559 Louisville to Chicago?

The Airportia On-Time Performance Rating for United Airlines Flight UA4559 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight UA4559 arriving at?

Flight UA4559 arrives at Chicago O'Hare International Airport (ORD) Terminal 2.

When was the latest UA4559 flight?

The latest flight took off on Thursday, May 21st, 2026 with the flight status being Landed on 20:21.

How else can the flight UA4559 be referenced as?

This United Airlines flight can also be referenced as UAL4559, UA 4559, UAL 4559.

How often is flight UA4559 delayed?

On average, 30% of all UA4559 flights are delayed. The average delay is 89 minutes.

Can I get compensation for my delayed or cancelled UA4559 flight or baggage issues?

If your UA4559 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 UA4559 Flight Tracker above for more details.

UA4559 and Louisville SDF to Chicago ORD Flights

Flight UA4559 is code-shared by 2 airlines using the flight numbers AC3571, LH7927

Other flights departing from Louisville SDF: AA4599, WN3328, AA3109, AA5635

Other flights arriving at Chicago ORD: UA5397, UA3492, UA4531, UA2212

All flights connecting Louisville SDF to Chicago ORD.

UA4559 United Airlines Flight: Louisville to Chicago 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.