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(WN) Southwest Airlines 3959 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(MKE) Milwaukee Mitchell International Airport

Milwaukee, WI, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
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
10
Total Delays ( > 1 min )
1
Codeshares
0
Average Delay (min.)
2
Standard Deviation
0
Min
0
Max
2

WN 3959 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 100%
Average Delay Time 2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 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 97% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 2 min
This flight has an average delay of 2 minutes with a standard deviation of 0 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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