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(WN) Southwest Airlines 399 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
56%
Late
3
12%
Very Late
4
16%
Excessive
4
16%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
34.1764705882353
Standard Deviation
34.5
Min
0
Max
144

WN 399 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 56%
Average Delay Time 34.1764705882353 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 18% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 56%
This flight has an on-time performance of 56%. 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
1.9 of 5
Average
Average Delay Time 34.1764705882353 min
This flight has an average delay of 34.1764705882353 minutes with a standard deviation of 34.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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