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(WN) Southwest Airlines 4531 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(SRQ) Sarasota Bradenton International Airport

Sarasota, FL, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
23
82%
Late
2
7%
Very Late
0
0%
Excessive
2
7%
Cancelled
1
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
7
Codeshares
0
Average Delay (min.)
42.285714285714285
Standard Deviation
54.9
Min
0
Max
133

WN 4531 On-Time Performance Details

Overall Rating
2.7 of 5
Average
Percentage On-Time 82%
Average Delay Time 42.285714285714285 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 52% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 42.285714285714285 min
This flight has an average delay of 42.285714285714285 minutes with a standard deviation of 54.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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