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(AA) American Airlines 3991 On-Time Performance Rating

Date Range:

01-Mar-2025 to 30-Apr-2025

(CMI) University of Illinois Willard Airport

Champaign, IL, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
61%
Late
9
32%
Very Late
0
0%
Excessive
2
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
19
Codeshares
28
Average Delay (min.)
19.894736842105264
Standard Deviation
14.6
Min
0
Max
62

AA 3991 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 61%
Average Delay Time 19.894736842105264 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 19.894736842105264 min
This flight has an average delay of 19.894736842105264 minutes with a standard deviation of 14.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.

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