(WN) Southwest Airlines 1509 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(MEM) Memphis International Airport

Memphis, TN, US

(HOU) Houston Hobby Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

81%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

23.833333333333332

Standard Deviation

26.2

Min

Max

WN 1509 On-Time Performance Details

Overall Rating

3.4 of 5

Average

Percentage On-Time 81%

Average Delay Time 23.833333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 67% of all other flights in the FlightStats database.

On-Time Performance Rating

3.5 of 5

Average

Percentage On-Time 81%

This flight has an on-time performance of 81%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.

Delay Performance

3.3 of 5

Average

Average Delay Time 23.833333333333332 min

This flight has an average delay of 23.833333333333332 minutes with a standard deviation of 26.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.