(WN) Southwest Airlines 957 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

57%

Late

14%

Very Late

21%

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

27.11111111111111

Standard Deviation

19.6

Min

Max

WN 957 On-Time Performance Details

Overall Rating

1.7 of 5

Average

Percentage On-Time 57%

Average Delay Time 27.11111111111111 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.

On-Time Performance Rating

0.2 of 5

Very Poor

Percentage On-Time 57%

This flight has an on-time performance of 57%. 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

3.1 of 5

Average

Average Delay Time 27.11111111111111 min

This flight has an average delay of 27.11111111111111 minutes with a standard deviation of 19.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.