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(WN) Southwest Airlines 3988 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
29
88%
Late
3
9%
Very Late
0
0%
Excessive
1
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
33
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
16.363636363636363
Standard Deviation
13.2
Min
0
Max
50

WN 3988 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 88%
Average Delay Time 16.363636363636363 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very 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 93% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 16.363636363636363 min
This flight has an average delay of 16.363636363636363 minutes with a standard deviation of 13.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.

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