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(AS) Alaska Airlines 4351 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(GSP) Greenville-Spartanburg International Airport

Greenville, SC, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
3
60%
Late
0
0%
Very Late
0
0%
Excessive
2
40%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
5
Total Delays ( > 1 min )
2
Codeshares
5
Average Delay (min.)
356
Standard Deviation
401.6
Min
0
Max
640

AS 4351 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 60%
Average Delay Time 356 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 356 min
This flight has an average delay of 356 minutes with a standard deviation of 401.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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