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(AA) American Airlines 4391 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-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
14
78%
Late
2
11%
Very Late
1
6%
Excessive
0
0%
Cancelled
0
0%
Diverted
1
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
6
Codeshares
17
Average Delay (min.)
15.166666666666666
Standard Deviation
9.4
Min
0
Max
30

AA 4391 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 82%
Average Delay Time 15.166666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 76% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 15.166666666666666 min
This flight has an average delay of 15.166666666666666 minutes with a standard deviation of 9.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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