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(WN) Southwest Airlines 3988 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
61%
Late
2
11%
Very Late
1
6%
Excessive
4
22%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
18
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
29.352941176470587
Standard Deviation
38.8
Min
0
Max
129

WN 3988 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 61%
Average Delay Time 29.352941176470587 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.
On-Time Performance Rating
0.6 of 5
Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 29.352941176470587 min
This flight has an average delay of 29.352941176470587 minutes with a standard deviation of 38.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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