(WN) Southwest Airlines 311 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(BNA) Nashville International Airport

Nashville, TN, US

(MDW) Chicago Midway International Airport

Chicago, IL, 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.)

25.833333333333332

Standard Deviation

16.7

Min

Max

WN 311 On-Time Performance Details

Overall Rating

1.8 of 5

Average

Percentage On-Time 33%

Average Delay Time 25.833333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 35% 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 1% of other flights.

Delay Performance

3.5 of 5

Average

Average Delay Time 25.833333333333332 min

This flight has an average delay of 25.833333333333332 minutes with a standard deviation of 16.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.