(WN) Southwest Airlines 239 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(ONT) Ontario International Airport

Ontario, CA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)

On-Time

67%

Late

17%

Very Late

Excessive

17%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

31.714285714285715

Standard Deviation

37.8

Min

Max

WN 239 On-Time Performance Details

Overall Rating

1.6 of 5

Average

Percentage On-Time 67%

Average Delay Time 31.714285714285715 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% of all other flights in the FlightStats database.

On-Time Performance Rating

0.8 of 5

Poor

Percentage On-Time 67%

This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.

Delay Performance

2.3 of 5

Average

Average Delay Time 31.714285714285715 min

This flight has an average delay of 31.714285714285715 minutes with a standard deviation of 37.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.