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(AA) American Airlines 4391 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(PWM) Portland International Jetport

Portland, ME, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
69%
Late
6
13%
Very Late
1
2%
Excessive
5
11%
Cancelled
0
0%
Diverted
2
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
22
Codeshares
43
Average Delay (min.)
40.13636363636363
Standard Deviation
60.3
Min
0
Max
209

AA 4391 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 72%
Average Delay Time 40.13636363636363 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
1.2 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 40.13636363636363 min
This flight has an average delay of 40.13636363636363 minutes with a standard deviation of 60.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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