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(AA) American Airlines 4991 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SBP) San Luis Obispo County Regional Airport

San Luis Obispo, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
41
68%
Late
7
12%
Very Late
2
3%
Excessive
7
12%
Cancelled
1
2%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
26
Codeshares
58
Average Delay (min.)
31.23076923076923
Standard Deviation
30.6
Min
0
Max
107

AA 4991 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 71%
Average Delay Time 31.23076923076923 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.
On-Time Performance Rating
0.6 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 31.23076923076923 min
This flight has an average delay of 31.23076923076923 minutes with a standard deviation of 30.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

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