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(UA) United Airlines 4563 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
68%
Late
4
11%
Very Late
2
5%
Excessive
3
8%
Cancelled
3
8%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
16
Codeshares
37
Average Delay (min.)
69.625
Standard Deviation
191.1
Min
0
Max
782

UA 4563 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 68%
Average Delay Time 69.625 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 11% of all other flights in the FlightStats database.
On-Time Performance Rating
1.1 of 5
Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 69.625 min
This flight has an average delay of 69.625 minutes with a standard deviation of 191.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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