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(WN) Southwest Airlines 331 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

(MDW) Chicago Midway International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
58%
Late
1
4%
Very Late
1
4%
Excessive
6
25%
Cancelled
0
0%
Diverted
2
8%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
55.90909090909091
Standard Deviation
51.9
Min
0
Max
166

WN 331 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 64%
Average Delay Time 55.90909090909091 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 4% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 64%
This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 55.90909090909091 min
This flight has an average delay of 55.90909090909091 minutes with a standard deviation of 51.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.

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