background

(WN) Southwest Airlines 4539 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(SAN) San Diego International Airport

San Diego, CA, US

(SMF) Sacramento International Airport

Sacramento, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
7
78%
Late
1
11%
Very Late
0
0%
Excessive
1
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
9
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
20
Standard Deviation
21
Min
0
Max
50

WN 4539 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 78%
Average Delay Time 20 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
2.5 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 50% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 20 min
This flight has an average delay of 20 minutes with a standard deviation of 21 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

Other Stops for WN 4539