background

(WN) Southwest Airlines 4938 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(FLL) Fort Lauderdale-Hollywood International Airport

Fort Lauderdale, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
45
78%
Late
4
7%
Very Late
3
5%
Excessive
6
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
30.318181818181817
Standard Deviation
28.8
Min
0
Max
102

WN 4938 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 78%
Average Delay Time 30.318181818181817 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 76% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 78%
This flight has an on-time performance of 78%. 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
3.6 of 5
Good
Average Delay Time 30.318181818181817 min
This flight has an average delay of 30.318181818181817 minutes with a standard deviation of 28.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.