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(UA) United Airlines 3597 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CHS) Charleston International Airport

Charleston, SC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
78%
Late
3
13%
Very Late
0
0%
Excessive
2
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
9
Codeshares
23
Average Delay (min.)
33.22222222222222
Standard Deviation
45.9
Min
0
Max
117

UA 3597 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 78%
Average Delay Time 33.22222222222222 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
2.7 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 33.22222222222222 min
This flight has an average delay of 33.22222222222222 minutes with a standard deviation of 45.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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