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(AS) Alaska Airlines 4539 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(SAN) San Diego International Airport

San Diego, CA, US

(MIA) Miami International Airport

Miami, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
16
84%
Late
0
0%
Very Late
0
0%
Excessive
2
11%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
19
Total Delays ( > 1 min )
4
Codeshares
19
Average Delay (min.)
371
Standard Deviation
422.1
Min
0
Max
739

AS 4539 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 84%
Average Delay Time 371 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 371 min
This flight has an average delay of 371 minutes with a standard deviation of 422.1 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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