(WN) Southwest Airlines 1921 On-Time Performance Rating

Date Range:

01-Sep-2026 to 31-Oct-2026

(SAT) San Antonio International Airport

San Antonio, TX, US

(HOU) Houston Hobby Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

67%

Late

17%

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.)

20.857142857142858

Standard Deviation

19.5

Min

Max

WN 1921 On-Time Performance Details

Overall Rating

2.2 of 5

Average

Percentage On-Time 67%

Average Delay Time 20.857142857142858 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.

On-Time Performance Rating

0.8 of 5

Poor

Percentage On-Time 67%

This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.

Delay Performance

3.5 of 5

Average

Average Delay Time 20.857142857142858 min

This flight has an average delay of 20.857142857142858 minutes with a standard deviation of 19.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.