| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Nov 30 | ORD | TYS | 21:13 | 20:33 |
Unknown
|
Track > |
| Nov 29 | ORD | TYS | 17:50 | 20:33 |
Cancelled
|
Track > |
| Claim > | ||||||
| Nov 28 | ORD | TYS | 17:50 | 20:33 |
Scheduled
|
Track > |
| Nov 25 | ORD | TYS | 18:10 | 20:23 |
Landed
|
Track > |
| Nov 24 | ORD | TYS | 20:16 | 20:33 |
Unknown
|
Track > |
| Nov 23 | ORD | TYS | 18:09 | 20:14 |
Landed
|
Track > |
| Nov 22 | ORD | TYS | 18:17 | 20:24 |
Landed
|
Track > |
| Nov 21 | ORD | TYS | 20:00 | 22:07 |
Delayed
|
Track > |
| Nov 20 | ORD | TYS | 18:11 | 20:34 |
Landed
|
Track > |
| Nov 19 | ORD | TYS | 18:05 | 20:07 |
Landed
|
Track > |
United Airlines Flight UA5621 connects Chicago, United States to Knoxville, United States, taking off from Chicago O'Hare International Airport ORD and landing at Knoxville McGhee Tyson Airport TYS.
How long is the UA5621 flight from Chicago to Knoxville?
The average flight time from Chicago to Knoxville is 1 hour and 9 minutes. The flight distance is 765 km / 475 miles and the average flight speed is 578 km/h / 359 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA5621 Chicago to Knoxville?
The Airportia On-Time Performance Rating for United Airlines Flight UA5621 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA5621 flight?
The latest flight took off on Monday, December 1st, 2025 with the flight status being Unknown on 20:33.
How else can the flight UA5621 be referenced as?
This United Airlines flight can also be referenced as UAL5621, UA 5621, UAL 5621.
How often is flight UA5621 delayed?
On average, 20% of all UA5621 flights are delayed. The average delay is 47 minutes.
Can I get compensation for my delayed or cancelled UA5621 flight or baggage issues?
If your UA5621 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 UA5621 Flight Tracker above for more details.
Flight UA5621 is code-shared by 3 airlines using the flight numbers EK6311, LH7916, NZ2949
Other flights departing from Chicago ORD: UA3593, OO6000, AA4031, AA4913
Other flights arriving at Knoxville TYS: DL5335, UA4437, G42145, G41397
All flights connecting Chicago ORD to Knoxville TYS.