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(WN) Southwest Airlines 4534 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(SAN) San Diego International Airport

San Diego, CA, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
72%
Late
3
12%
Very Late
1
4%
Excessive
3
12%
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.)
23.764705882352942
Standard Deviation
28.1
Min
0
Max
89

WN 4534 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 72%
Average Delay Time 23.764705882352942 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 23.764705882352942 min
This flight has an average delay of 23.764705882352942 minutes with a standard deviation of 28.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

Other Stops for WN 4534