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(WN) Southwest Airlines 4242 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(MDW) Chicago Midway International Airport

Chicago, IL, US

(MIA) Miami International Airport

Miami, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
58%
Late
3
12%
Very Late
0
0%
Excessive
6
23%
Cancelled
1
4%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
38.11764705882353
Standard Deviation
42.2
Min
0
Max
129

WN 4242 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 60%
Average Delay Time 38.11764705882353 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 15% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 38.11764705882353 min
This flight has an average delay of 38.11764705882353 minutes with a standard deviation of 42.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.

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