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(WN) Southwest Airlines 3135 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
50%
Late
1
25%
Very Late
1
25%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
4
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
13.75
Standard Deviation
12.8
Min
1
Max
31

WN 3135 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 50%
Average Delay Time 13.75 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 41% of all other flights in the FlightStats database.
On-Time Performance Rating
0.4 of 5
Very Poor
Percentage On-Time 50%
This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 13.75 min
This flight has an average delay of 13.75 minutes with a standard deviation of 12.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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