| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 17 | SDF | ORD | 18:00 | 18:02 |
Landed
|
Track > |
| Dec 16 | SDF | ORD | 18:22 | 18:27 |
Landed
|
Track > |
| Dec 15 | SDF | ORD | 18:10 | 18:12 |
Landed
|
Track > |
| Dec 14 | SDF | ORD | 19:39 | 19:37 |
Landed Late
|
Track > |
| Dec 13 | SDF | ORD | 20:21 | 20:20 |
Delayed
|
Track > |
| Dec 12 | SDF | ORD | 20:51 | 18:50 |
Unknown
|
Track > |
| Dec 11 | SDF | ORD | 19:33 | 19:35 |
Landed Late
|
Track > |
| Dec 10 | SDF | ORD | 18:11 | 18:13 |
Landed
|
Track > |
| Dec 09 | SDF | ORD | 18:19 | 18:19 |
Landed
|
Track > |
| Dec 08 | SDF | ORD | 19:17 | 19:14 |
Landed Late
|
Track > |
United Airlines Flight UA4540 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 UA4540 flight from Louisville to Chicago?
The average flight time from Louisville to Chicago is 1 hour. The flight distance is 461 km / 287 miles and the average flight speed is 435 km/h / 270 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4540 Louisville to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA4540 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA4540 arriving at?
Flight UA4540 arrives at Chicago O'Hare International Airport (ORD) Terminal 2.
When was the latest UA4540 flight?
The latest flight took off on Thursday, December 18th, 2025 with the flight status being Landed on 18:02.
How else can the flight UA4540 be referenced as?
This United Airlines flight can also be referenced as UAL4540, UA 4540, UAL 4540.
How often is flight UA4540 delayed?
On average, 40% of all UA4540 flights are delayed. The average delay is 51 minutes.
Can I get compensation for my delayed or cancelled UA4540 flight or baggage issues?
If your UA4540 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 UA4540 Flight Tracker above for more details.
Flight UA4540 is code-shared by 3 airlines using the flight numbers AC3670, LH7927, NZ2870
Other flights departing from Louisville SDF: WN3027, WN1326, DL2812, DL5505
Other flights arriving at Chicago ORD: UA3570, UA3686, UA5852, UA1641
All flights connecting Louisville SDF to Chicago ORD.