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(WN) Southwest Airlines 4421 On-Time Performance Rating

Date Range:

15-Sep-2025 to 15-Nov-2025

(SAT) San Antonio International Airport

San Antonio, TX, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
85%
Late
1
4%
Very Late
1
4%
Excessive
2
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
27.5
Standard Deviation
42.7
Min
0
Max
138

WN 4421 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 85%
Average Delay Time 27.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.5 shows that this flight has on-time performance characteristics better than 69% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 27.5 min
This flight has an average delay of 27.5 minutes with a standard deviation of 42.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

Other Stops for WN 4421