(UA) United Airlines 4563 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CHA) Chattanooga Metropolitan Airport

Chattanooga, TN, US

On-Time Performance Chart

(using rounded numbers)

On-Time

44%

Late

13%

Very Late

25%

Excessive

19%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

62.44444444444444

Standard Deviation

52.9

Min

Max

163

UA 4563 On-Time Performance Details

Overall Rating

0.2 of 5

Very Poor

Percentage On-Time 44%

Average Delay Time 62.44444444444444 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 of 5

Very Poor

Percentage On-Time 44%

This flight has an on-time performance of 44%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.

Delay Performance

0.3 of 5

Very Poor

Average Delay Time 62.44444444444444 min

This flight has an average delay of 62.44444444444444 minutes with a standard deviation of 52.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.