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(WN) Southwest Airlines 4397 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
1
8%
Late
2
17%
Very Late
2
17%
Excessive
7
58%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
12
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
47.333333333333336
Standard Deviation
29.6
Min
3
Max
122

WN 4397 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 8%
Average Delay Time 47.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 11% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 8%
This flight has an on-time performance of 8%. 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
1.2 of 5
Poor
Average Delay Time 47.333333333333336 min
This flight has an average delay of 47.333333333333336 minutes with a standard deviation of 29.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

Other Stops for WN 4397