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(UA) United Airlines 4397 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(DAY) James M Cox Dayton International Airport

Dayton, OH, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
29%
Late
3
18%
Very Late
2
12%
Excessive
5
29%
Cancelled
2
12%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
11
Codeshares
17
Average Delay (min.)
73.45454545454545
Standard Deviation
75.7
Min
0
Max
253

UA 4397 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 29%
Average Delay Time 73.45454545454545 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 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 29%
This flight has an on-time performance of 29%. 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
0.1 of 5
Very Poor
Average Delay Time 73.45454545454545 min
This flight has an average delay of 73.45454545454545 minutes with a standard deviation of 75.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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