(WN) Southwest Airlines 4320 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

78%

Late

11%

Very Late

Excessive

11%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

64.25

Standard Deviation

67.6

Min

Max

163

WN 4320 On-Time Performance Details

Overall Rating

1.9 of 5

Average

Percentage On-Time 78%

Average Delay Time 64.25 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.

On-Time Performance Rating

3.1 of 5

Average

Percentage On-Time 78%

This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.

Delay Performance

0.7 of 5

Poor

Average Delay Time 64.25 min

This flight has an average delay of 64.25 minutes with a standard deviation of 67.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.