(WN) Southwest Airlines 4320 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(OAK) San Francisco Bay Oakland International Airport

Oakland, CA, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

Late

Very Late

100%

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

Min

Max

WN 4320 On-Time Performance Details

Overall Rating

1.3 of 5

Poor

Percentage On-Time 0%

Average Delay Time 39 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 24% of all other flights in the FlightStats database.

On-Time Performance Rating

0.2 of 5

Very Poor

Percentage On-Time 0%

This flight has an on-time performance of 0%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.

Delay Performance

2.3 of 5

Average

Average Delay Time 39 min

This flight has an average delay of 39 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.