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(WN) Southwest Airlines 635 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(BNA) Nashville International Airport

Nashville, TN, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
93%
Late
2
4%
Very Late
0
0%
Excessive
0
0%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
5
Codeshares
0
Average Delay (min.)
9.4
Standard Deviation
11.4
Min
0
Max
27

WN 635 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 93%
Average Delay Time 9.4 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 90% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 93%
This flight has an on-time performance of 93%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 9.4 min
This flight has an average delay of 9.4 minutes with a standard deviation of 11.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.

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