(WN) Southwest Airlines 121 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

(BWI) Baltimore Washington International Airport

Baltimore, MD, US

On-Time Performance Chart

(using rounded numbers)

On-Time

67%

Late

Very Late

Excessive

33%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

Min

Max

WN 121 On-Time Performance Details

Overall Rating

1.6 of 5

Average

Percentage On-Time 67%

Average Delay Time 72 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% of all other flights in the FlightStats database.

On-Time Performance Rating

1.7 of 5

Average

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 34% of other flights.

Delay Performance

1.4 of 5

Poor

Average Delay Time 72 min

This flight has an average delay of 72 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.