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(WN) Southwest Airlines 1599 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
100%
Late
0
0%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
8
Standard Deviation
8.5
Min
0
Max
14

WN 1599 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 100%
Average Delay Time 8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 100%
This flight has an on-time performance of 100%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 95% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 8 min
This flight has an average delay of 8 minutes with a standard deviation of 8.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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