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(AS) Alaska Airlines 4423 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(PWM) Portland International Jetport

Portland, ME, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
63%
Late
1
6%
Very Late
1
6%
Excessive
4
25%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
9
Codeshares
16
Average Delay (min.)
58.77777777777778
Standard Deviation
61.6
Min
0
Max
187

AS 4423 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 63%
Average Delay Time 58.77777777777778 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 5% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 63%
This flight has an on-time performance of 63%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 58.77777777777778 min
This flight has an average delay of 58.77777777777778 minutes with a standard deviation of 61.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.

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