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(WN) Southwest Airlines 1397 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
88%
Late
2
5%
Very Late
1
2%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
19.166666666666668
Standard Deviation
22
Min
0
Max
82

WN 1397 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 88%
Average Delay Time 19.166666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 89% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 19.166666666666668 min
This flight has an average delay of 19.166666666666668 minutes with a standard deviation of 22 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.

Other Stops for WN 1397