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(AS) Alaska Airlines 4391 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
74%
Late
2
9%
Very Late
0
0%
Excessive
2
9%
Cancelled
2
9%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
5
Codeshares
23
Average Delay (min.)
40.2
Standard Deviation
31.4
Min
0
Max
87

AS 4391 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 74%
Average Delay Time 40.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 40.2 min
This flight has an average delay of 40.2 minutes with a standard deviation of 31.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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