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(WN) Southwest Airlines 3957 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
24
60%
Late
6
15%
Very Late
4
10%
Excessive
6
15%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
40
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
48.523809523809526
Standard Deviation
51.2
Min
0
Max
202

WN 3957 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 60%
Average Delay Time 48.523809523809526 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 8% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 48.523809523809526 min
This flight has an average delay of 48.523809523809526 minutes with a standard deviation of 51.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

Other Stops for WN 3957