(WN) Southwest Airlines 866 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(BOI) Boise Air Terminal

Boise, ID, US

(SMF) Sacramento International Airport

Sacramento, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

33%

Late

24%

Very Late

24%

Excessive

19%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

38.588235294117645

Standard Deviation

43.1

Min

Max

194

WN 866 On-Time Performance Details

Overall Rating

0.8 of 5

Poor

Percentage On-Time 33%

Average Delay Time 38.588235294117645 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 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 0% of other flights.

Delay Performance

1.5 of 5

Poor

Average Delay Time 38.588235294117645 min

This flight has an average delay of 38.588235294117645 minutes with a standard deviation of 43.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.