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(WN) Southwest Airlines 866 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(BNA) Nashville International Airport

Nashville, TN, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
71%
Late
0
0%
Very Late
4
24%
Excessive
1
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
28
Standard Deviation
21.4
Min
0
Max
62

WN 866 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 71%
Average Delay Time 28 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 51% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 28 min
This flight has an average delay of 28 minutes with a standard deviation of 21.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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