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(WN) Southwest Airlines 4239 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(OMA) Omaha Eppley Airfield

Omaha, NE, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
50%
Late
2
20%
Very Late
1
10%
Excessive
2
20%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
10
Total Delays ( > 1 min )
7
Codeshares
0
Average Delay (min.)
43.57142857142857
Standard Deviation
40.7
Min
0
Max
124

WN 4239 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 50%
Average Delay Time 43.57142857142857 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 50%
This flight has an on-time performance of 50%. 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 43.57142857142857 min
This flight has an average delay of 43.57142857142857 minutes with a standard deviation of 40.7 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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