(WN) Southwest Airlines 859 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(SMF) Sacramento International Airport

Sacramento, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

56%

Late

22%

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

28.64

Standard Deviation

25.4

Min

Max

WN 859 On-Time Performance Details

Overall Rating

1.9 of 5

Average

Percentage On-Time 56%

Average Delay Time 28.64 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 37% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 of 5

Very Poor

Percentage On-Time 56%

This flight has an on-time performance of 56%. 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

3.8 of 5

Good

Average Delay Time 28.64 min

This flight has an average delay of 28.64 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 76% of other flights.