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(WN) Southwest Airlines 4285 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
6
25%
Late
3
13%
Very Late
6
25%
Excessive
9
38%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
49.78947368421053
Standard Deviation
34.3
Min
0
Max
162

WN 4285 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 25%
Average Delay Time 49.78947368421053 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 6% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 25%
This flight has an on-time performance of 25%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 49.78947368421053 min
This flight has an average delay of 49.78947368421053 minutes with a standard deviation of 34.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.

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