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(AS) Alaska Airlines 6637 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(SAN) San Diego International Airport

San Diego, CA, US

(DFW) Dallas Fort Worth International Airport

Dallas, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
35
71%
Late
4
8%
Very Late
3
6%
Excessive
5
10%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
48
Total Delays ( > 1 min )
22
Codeshares
48
Average Delay (min.)
39.27272727272727
Standard Deviation
58.6
Min
0
Max
265

AS 6637 On-Time Performance Details

Overall Rating
1.3 of 5
Poor
Percentage On-Time 73%
Average Delay Time 39.27272727272727 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 25% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 39.27272727272727 min
This flight has an average delay of 39.27272727272727 minutes with a standard deviation of 58.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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