(WN) Southwest Airlines 4078 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(LAX) Los Angeles International Airport

Los Angeles, CA, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

75%

Late

13%

Very Late

Excessive

Cancelled

13%

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

9.9

Min

Max

WN 4078 On-Time Performance Details

Overall Rating

2.9 of 5

Average

Percentage On-Time 75%

Average Delay Time 11 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 56% of all other flights in the FlightStats database.

On-Time Performance Rating

2.1 of 5

Average

Percentage On-Time 75%

This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.

Delay Performance

3.6 of 5

Good

Average Delay Time 11 min

This flight has an average delay of 11 minutes with a standard deviation of 9.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.