United Airlines UA4573 Flight Status
According to Trip.com real-time data, the UA4573 flight operated by United Airlines on Mar 26, 2026 is scheduled to fly from Chicago (ORD) to Knoxville (TYS). The flight is expected to depart at 13:55 (local time in Chicago, UTC-5) and land at 15:59 (local time in Knoxville, UTC-4) .
Wed, Mar 25
Thu, Mar 26
Fri, Mar 27
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Arrived
The flight has arrived 25m early
1h 50m
Check-in Counter
--
Boarding Gate
G4
Arrival Gate
9
Baggage
3
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Scheduled
Your flight will depart on time.
1h 50m
Check-in Counter
--
Boarding Gate
F25
Arrival Gate
--
Baggage
3
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Scheduled
Your flight will depart on time.
1h 50m
Check-in Counter
--
Boarding Gate
F15
Arrival Gate
--
Baggage
--
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Information provided by VariFlight. Please refer to airport announcements for the most up-to-date information.
Track the Previous Flight Status: Scheduled
UA4395
|
St. Louis (STL) 
Chicago (CHI)
Chicago (CHI)Scheduled: 12:58
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UA4573 Aircraft Details
Bombardier CRJ-550
Punctuality (Departure)
53%
Punctuality (Arrival)
68%
Late on average
16 minutes
Age
--
Seats
--
Flight Distance
--
Economy
Premium Economy
Business
First
In-Flight Services
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
In-Flight Services
Snacks
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
In-Flight Services
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
1-2
Seat layout example
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Recent Flight History for UA4573
Trip.com historical records show that the last UA4573 flight departed on Wed, Mar 25 from ORD at approximately 14:07. This flight is expected to arrrive in TYS at 16:20.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sat, Mar 21 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 14:11 | 16:13 | Arrived |
| Sun, Mar 22 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 14:06 | 16:09 | Arrived |
| Mon, Mar 23 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 14:59 | 17:01 | Arrived |
| Tue, Mar 24 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 14:12 | 16:16 | Arrived |
| Wed, Mar 25 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 14:07 | 16:20 | Arrived |
| Thu, Mar 26 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 13:55 | 15:59 | Scheduled |
| Fri, Mar 27 | Chicago (ORD) | Knoxville (TYS) | CRJ7 | 13:55 | 16:45 | Scheduled |
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UA4573 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4573 is 53% (Late on average 1 hour), and the on-time arrival rate is 68% (Late on average 16 minutes).
On-Time Departures
Punctuality
53%
Late on average 1 hour
Early
0%
On time
53%
30 mins late
11%
60 mins late
16%
90 mins late
21%
Cancelled
10%
On-Time Arrivals
Punctuality
68%
Late on average 16 minutes
Early
63%
On time
5%
30 mins late
11%
60 mins late
11%
90 mins late
11%
Cancelled
10%
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Cheap return flights to Chicago
- Sat, May 9Knoxville (TYS)Chicago (CHI)
Hahn AirOne way40% offPHP 11,004PHP 6,594 - Tue, Apr 7Knoxville (TYS)Chicago (CHI) Hahn AirOne way26% offPHP 11,004PHP 8,112
- Fri, May 1Knoxville (TYS)Chicago (CHI)
American AirlinesOne way25% offPHP 11,004PHP 8,260 - Mon, May 11Knoxville (TYS)Chicago (CHI) United AirlinesOne way24% offPHP 11,004PHP 8,330
- Fri, May 8Knoxville (TYS)Chicago (CHI)
Delta Air LinesOne way22% offPHP 11,004PHP 8,540 - Mon, May 4Knoxville (TYS)Chicago (CHI) Delta Air LinesOne way22% offPHP 11,004PHP 8,583
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Arrival Info: Knoxville Weather & Current Time
Cloudy
|
11°C - 22°C
Weather forecast for your arrival day
1 hour time difference
Time on arrival: Chicago 15:45| Knoxville 16:45
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