(WN) Southwest Airlines 128 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(DEN) Denver International Airport

Denver, CO, US

(SAN) San Diego International Airport

San Diego, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

33%

Late

17%

Very Late

33%

Excessive

17%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

48.5

Standard Deviation

23.3

Min

Max

WN 128 On-Time Performance Details

Overall Rating

0.9 of 5

Poor

Percentage On-Time 33%

Average Delay Time 48.5 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.9 shows that this flight has on-time performance characteristics better than 17% of all other flights in the FlightStats database.

On-Time Performance Rating

0.1 of 5

Very Poor

Percentage On-Time 33%

This flight has an on-time performance of 33%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.

Delay Performance

1.7 of 5

Average

Average Delay Time 48.5 min

This flight has an average delay of 48.5 minutes with a standard deviation of 23.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.