(UA) United Airlines 4397 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

On-Time Performance Chart

(using rounded numbers)

On-Time

53%

Late

10%

Very Late

Excessive

13%

Cancelled

23%

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

82.33333333333333

Standard Deviation

136.9

Min

Max

381

UA 4397 On-Time Performance Details

Overall Rating

0.0 of 5

Very Poor

Percentage On-Time 53%

Average Delay Time 82.33333333333333 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 of 5

Very Poor

Percentage On-Time 53%

This flight has an on-time performance of 53%. 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

0.0 of 5

Very Poor

Average Delay Time 82.33333333333333 min

This flight has an average delay of 82.33333333333333 minutes with a standard deviation of 136.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.