(WN) Southwest Airlines 121 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(HOU) Houston Hobby Airport

Houston, TX, US

(DAL) Dallas Love Field

Dallas, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

83%

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.)

10.666666666666666

Standard Deviation

13.3

Min

Max

WN 121 On-Time Performance Details

Overall Rating

3.7 of 5

Good

Percentage On-Time 83%

Average Delay Time 10.666666666666666 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.7 shows that this flight has on-time performance characteristics better than 72% of all other flights in the FlightStats database.

On-Time Performance Rating

3.5 of 5

Average

Percentage On-Time 83%

This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.

Delay Performance

3.8 of 5

Good

Average Delay Time 10.666666666666666 min

This flight has an average delay of 10.666666666666666 minutes with a standard deviation of 13.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.