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(WN) Southwest Airlines 4878 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(LAX) Los Angeles International Airport

Los Angeles, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
16
89%
Late
1
6%
Very Late
0
0%
Excessive
1
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
18
Total Delays ( > 1 min )
5
Codeshares
0
Average Delay (min.)
20.8
Standard Deviation
24
Min
0
Max
63

WN 4878 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 89%
Average Delay Time 20.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 95% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 20.8 min
This flight has an average delay of 20.8 minutes with a standard deviation of 24 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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