(WN) Southwest Airlines 397 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(HOU) Houston Hobby Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

75%

Late

Very Late

25%

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

21.5

Standard Deviation

14.8

Min

Max

WN 397 On-Time Performance Details

Overall Rating

2.7 of 5

Average

Percentage On-Time 75%

Average Delay Time 21.5 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 53% of all other flights in the FlightStats database.

On-Time Performance Rating

2.3 of 5

Average

Percentage On-Time 75%

This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.

Delay Performance

3.1 of 5

Average

Average Delay Time 21.5 min

This flight has an average delay of 21.5 minutes with a standard deviation of 14.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.