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(AA) American Airlines 4509 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(EYW) Key West International Airport

Key West, FL, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
83%
Late
1
4%
Very Late
0
0%
Excessive
2
8%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
5
Codeshares
23
Average Delay (min.)
87
Standard Deviation
106
Min
0
Max
240

AA 4509 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 87%
Average Delay Time 87 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 46% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 87 min
This flight has an average delay of 87 minutes with a standard deviation of 106 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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