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(WN) Southwest Airlines 439 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
35
69%
Late
9
18%
Very Late
2
4%
Excessive
4
8%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
50
Total Delays ( > 1 min )
23
Codeshares
0
Average Delay (min.)
26.652173913043477
Standard Deviation
26.2
Min
0
Max
110

WN 439 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 70%
Average Delay Time 26.652173913043477 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 26.652173913043477 min
This flight has an average delay of 26.652173913043477 minutes with a standard deviation of 26.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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