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(AA) American Airlines 4509 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(LGA) New York LaGuardia Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
27
73%
Late
1
3%
Very Late
1
3%
Excessive
5
14%
Cancelled
1
3%
Diverted
2
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
12
Codeshares
35
Average Delay (min.)
59.916666666666664
Standard Deviation
79.6
Min
0
Max
271

AA 4509 On-Time Performance Details

Overall Rating
1.3 of 5
Poor
Percentage On-Time 77%
Average Delay Time 59.916666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 25% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 59.916666666666664 min
This flight has an average delay of 59.916666666666664 minutes with a standard deviation of 79.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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