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(WN) Southwest Airlines 4545 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

On-Time Performance Chart

(using rounded numbers)
On-Time
26
79%
Late
2
6%
Very Late
1
3%
Excessive
4
12%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
33
Total Delays ( > 1 min )
13
Codeshares
0
Average Delay (min.)
34.46153846153846
Standard Deviation
40.1
Min
0
Max
102

WN 4545 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 79%
Average Delay Time 34.46153846153846 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
2.9 of 5
Average
Percentage On-Time 79%
This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 34.46153846153846 min
This flight has an average delay of 34.46153846153846 minutes with a standard deviation of 40.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

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