(WN) Southwest Airlines 3520 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(MKE) Milwaukee Mitchell International Airport

Milwaukee, WI, US

On-Time Performance Chart

(using rounded numbers)

On-Time

75%

Late

Very Late

Excessive

19%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

31.833333333333332

Standard Deviation

25.4

Min

Max

WN 3520 On-Time Performance Details

Overall Rating

2.0 of 5

Average

Percentage On-Time 75%

Average Delay Time 31.833333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 39% of all other flights in the FlightStats database.

On-Time Performance Rating

1.7 of 5

Average

Percentage On-Time 75%

This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 34% of other flights.

Delay Performance

2.3 of 5

Average

Average Delay Time 31.833333333333332 min

This flight has an average delay of 31.833333333333332 minutes with a standard deviation of 25.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.