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(WN) Southwest Airlines 4378 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(SNA) John Wayne Airport

Santa Ana, CA, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
7
88%
Late
1
13%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
14.333333333333334
Standard Deviation
7.1
Min
0
Max
22

WN 4378 On-Time Performance Details

Overall Rating
3.8 of 5
Good
Percentage On-Time 88%
Average Delay Time 14.333333333333334 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 74% of all other flights in the FlightStats database.
On-Time Performance Rating
3.9 of 5
Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 79% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 14.333333333333334 min
This flight has an average delay of 14.333333333333334 minutes with a standard deviation of 7.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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