(WN) Southwest Airlines 663 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(BNA) Nashville International Airport

Nashville, TN, US

(SAT) San Antonio International Airport

San Antonio, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

89%

Late

11%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

13.642857142857142

Standard Deviation

7.6

Min

Max

WN 663 On-Time Performance Details

Overall Rating

4.9 of 5

Very Good

Percentage On-Time 89%

Average Delay Time 13.642857142857142 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.9 shows that this flight has on-time performance characteristics better than 96% of all other flights in the FlightStats database.

On-Time Performance Rating

5.0 of 5

Very Good

Percentage On-Time 89%

This flight has an on-time performance of 89%. 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

4.7 of 5

Very Good

Average Delay Time 13.642857142857142 min

This flight has an average delay of 13.642857142857142 minutes with a standard deviation of 7.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 93% of other flights.