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(WN) Southwest Airlines 423 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
69%
Late
1
6%
Very Late
1
6%
Excessive
3
19%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
7
Codeshares
0
Average Delay (min.)
45.57142857142857
Standard Deviation
43.1
Min
0
Max
110

WN 423 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 69%
Average Delay Time 45.57142857142857 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 19% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 45.57142857142857 min
This flight has an average delay of 45.57142857142857 minutes with a standard deviation of 43.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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