(WN) Southwest Airlines 958 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

On-Time Performance Chart

(using rounded numbers)

On-Time

25%

Late

50%

Very Late

Excessive

25%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

27.75

Standard Deviation

17.8

Min

Max

WN 958 On-Time Performance Details

Overall Rating

1.6 of 5

Average

Percentage On-Time 25%

Average Delay Time 27.75 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 31% of all other flights in the FlightStats database.

On-Time Performance Rating

0.1 of 5

Very Poor

Percentage On-Time 25%

This flight has an on-time performance of 25%. 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

3.1 of 5

Average

Average Delay Time 27.75 min

This flight has an average delay of 27.75 minutes with a standard deviation of 17.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.