(WN) Southwest Airlines 859 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(GEG) Spokane International Airport

Spokane, WA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)

On-Time

83%

Late

Very Late

Excessive

11%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

39.57142857142857

Standard Deviation

58.9

Min

Max

165

WN 859 On-Time Performance Details

Overall Rating

3.2 of 5

Average

Percentage On-Time 83%

Average Delay Time 39.57142857142857 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 62% of all other flights in the FlightStats database.

On-Time Performance Rating

4.2 of 5

Good

Percentage On-Time 83%

This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.

Delay Performance

2.1 of 5

Average

Average Delay Time 39.57142857142857 min

This flight has an average delay of 39.57142857142857 minutes with a standard deviation of 58.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.