(WN) Southwest Airlines 4280 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(OAK) San Francisco Bay Oakland International Airport

Oakland, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

77%

Late

19%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

22.625

Standard Deviation

22.9

Min

Max

WN 4280 On-Time Performance Details

Overall Rating

2.8 of 5

Average

Percentage On-Time 77%

Average Delay Time 22.625 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 55% of all other flights in the FlightStats database.

On-Time Performance Rating

2.1 of 5

Average

Percentage On-Time 77%

This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.

Delay Performance

3.5 of 5

Average

Average Delay Time 22.625 min

This flight has an average delay of 22.625 minutes with a standard deviation of 22.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.