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(WN) Southwest Airlines 373 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
16
48%
Late
6
18%
Very Late
5
15%
Excessive
5
15%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
33
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
34.857142857142854
Standard Deviation
33
Min
0
Max
150

WN 373 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 49%
Average Delay Time 34.857142857142854 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 49%
This flight has an on-time performance of 49%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 34.857142857142854 min
This flight has an average delay of 34.857142857142854 minutes with a standard deviation of 33 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

Other Stops for WN 373