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(WN) Southwest Airlines 4373 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SAN) San Diego International Airport

San Diego, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
23
47%
Late
5
10%
Very Late
6
12%
Excessive
15
31%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
49
Total Delays ( > 1 min )
38
Codeshares
0
Average Delay (min.)
43.39473684210526
Standard Deviation
42.3
Min
0
Max
183

WN 4373 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 47%
Average Delay Time 43.39473684210526 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 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 47%
This flight has an on-time performance of 47%. 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
0.8 of 5
Poor
Average Delay Time 43.39473684210526 min
This flight has an average delay of 43.39473684210526 minutes with a standard deviation of 42.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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