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(WN) Southwest Airlines 866 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-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
11
33%
Late
7
21%
Very Late
2
6%
Excessive
7
21%
Cancelled
6
18%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
33
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
29.818181818181817
Standard Deviation
23.5
Min
0
Max
89

WN 866 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 33%
Average Delay Time 29.818181818181817 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% 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
3.1 of 5
Average
Average Delay Time 29.818181818181817 min
This flight has an average delay of 29.818181818181817 minutes with a standard deviation of 23.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

Other Stops for WN 866