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(AA) American Airlines 4639 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(ROC) Frederick Douglass Greater Rochester Intl Airport

Rochester, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
65%
Late
0
0%
Very Late
0
0%
Excessive
7
27%
Cancelled
2
8%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
9
Codeshares
26
Average Delay (min.)
49.888888888888886
Standard Deviation
26.3
Min
0
Max
85

AA 4639 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 65%
Average Delay Time 49.888888888888886 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
0.9 of 5
Poor
Percentage On-Time 65%
This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 49.888888888888886 min
This flight has an average delay of 49.888888888888886 minutes with a standard deviation of 26.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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