| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 02 | TYS | ORD | 17:28 | 17:51 |
Landed
|
Track > |
| Mar 01 | TYS | ORD | 17:39 | 18:06 |
Landed
|
Track > |
| Feb 27 | TYS | ORD | 17:26 | 17:47 |
Landed
|
Track > |
| Feb 26 | TYS | ORD | 17:53 | 18:15 |
Landed
|
Track > |
| Feb 23 | TYS | ORD | 17:33 | 18:04 |
Landed
|
Track > |
| Feb 22 | TYS | ORD | 18:37 | 19:00 |
Landed Late
|
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| Feb 20 | TYS | ORD | 18:29 | 18:57 |
Landed Late
|
Track > |
| Feb 19 | TYS | ORD | 20:30 | 18:31 |
Unknown
|
Track > |
| Feb 16 | TYS | ORD | 18:01 | 18:24 |
Landed
|
Track > |
| Feb 15 | TYS | ORD | 17:39 | 18:00 |
Landed
|
Track > |
United Airlines Flight UA4540 connects Knoxville, United States to Chicago, United States, taking off from Knoxville McGhee Tyson Airport TYS and landing at Chicago O'Hare International Airport ORD.
How long is the UA4540 flight from Knoxville to Chicago?
The average flight time from Knoxville to Chicago is 1 hour and 24 minutes. The flight distance is 765 km / 475 miles and the average flight speed is 527 km/h / 328 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4540 Knoxville to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA4540 is 4.9/5 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 Tuesday, March 3rd, 2026 with the flight status being Landed on 17:51.
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, 20% of all UA4540 flights are delayed. The average delay is 27 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 2 airlines using the flight numbers LH9353, NZ2948
Other flights departing from Knoxville TYS: DL8915, AA5188, DL1156, G42125
Other flights arriving at Chicago ORD: UA630, UA777, UA284, UA4596
All flights connecting Knoxville TYS to Chicago ORD.