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(AS) Alaska Airlines 4501 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(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
8
33%
Late
7
29%
Very Late
1
4%
Excessive
4
17%
Cancelled
2
8%
Diverted
2
8%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
14
Codeshares
22
Average Delay (min.)
37.285714285714285
Standard Deviation
32.9
Min
0
Max
121

AS 4501 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 36%
Average Delay Time 37.285714285714285 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 36%
This flight has an on-time performance of 36%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 37.285714285714285 min
This flight has an average delay of 37.285714285714285 minutes with a standard deviation of 32.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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