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(WN) Southwest Airlines 866 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
3
30%
Late
3
30%
Very Late
0
0%
Excessive
3
30%
Cancelled
1
10%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
10
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
33.125
Standard Deviation
29.6
Min
0
Max
89

WN 866 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 30%
Average Delay Time 33.125 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 22% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 30%
This flight has an on-time performance of 30%. 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
2.3 of 5
Average
Average Delay Time 33.125 min
This flight has an average delay of 33.125 minutes with a standard deviation of 29.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

Other Stops for WN 866