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(WN) Southwest Airlines 399 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
4
33%
Late
1
8%
Very Late
3
25%
Excessive
4
33%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
12
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
66.33333333333333
Standard Deviation
61.7
Min
0
Max
201

WN 399 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 33%
Average Delay Time 66.33333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 33%
This flight has an on-time performance of 33%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 66.33333333333333 min
This flight has an average delay of 66.33333333333333 minutes with a standard deviation of 61.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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