(WN) Southwest Airlines 1509 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

80%

Late

Very Late

Excessive

20%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

53.7

Min

Max

WN 1509 On-Time Performance Details

Overall Rating

2.5 of 5

Average

Percentage On-Time 80%

Average Delay Time 39 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.

On-Time Performance Rating

2.9 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.

Delay Performance

2.1 of 5

Average

Average Delay Time 39 min

This flight has an average delay of 39 minutes with a standard deviation of 53.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.