background

(AS) Alaska Airlines 4509 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(SAT) San Antonio International Airport

San Antonio, TX, US

(DFW) Dallas Fort Worth International Airport

Dallas, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
78%
Late
1
3%
Very Late
0
0%
Excessive
5
14%
Cancelled
2
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
15
Codeshares
36
Average Delay (min.)
46.53333333333333
Standard Deviation
74.2
Min
0
Max
272

AS 4509 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 78%
Average Delay Time 46.53333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 41% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 46.53333333333333 min
This flight has an average delay of 46.53333333333333 minutes with a standard deviation of 74.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

Other Stops for AS 4509