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(AA) American Airlines 4991 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(FSD) Sioux Falls Regional Airport

Sioux Falls, SD, US

On-Time Performance Chart

(using rounded numbers)
On-Time
43
74%
Late
4
7%
Very Late
0
0%
Excessive
10
17%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
19
Codeshares
58
Average Delay (min.)
65.94736842105263
Standard Deviation
59.1
Min
0
Max
192

AA 4991 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 74%
Average Delay Time 65.94736842105263 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
2.1 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 65.94736842105263 min
This flight has an average delay of 65.94736842105263 minutes with a standard deviation of 59.1 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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