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(WN) Southwest Airlines 3988 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(DAL) Dallas Love Field

Dallas, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
44%
Late
4
22%
Very Late
1
6%
Excessive
5
28%
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.)
38.294117647058826
Standard Deviation
42.2
Min
0
Max
155

WN 3988 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 44%
Average Delay Time 38.294117647058826 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 44%
This flight has an on-time performance of 44%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 38.294117647058826 min
This flight has an average delay of 38.294117647058826 minutes with a standard deviation of 42.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

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