(WN) Southwest Airlines 921 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(ISP) Long Island MacArthur Airport

Islip, NY, US

(BWI) Baltimore Washington International Airport

Baltimore, MD, US

On-Time Performance Chart

(using rounded numbers)

On-Time

75%

Late

13%

Very Late

Excessive

13%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

21.7

Min

Max

WN 921 On-Time Performance Details

Overall Rating

2.5 of 5

Average

Percentage On-Time 75%

Average Delay Time 22 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.

On-Time Performance Rating

1.9 of 5

Average

Percentage On-Time 75%

This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.

Delay Performance

3.1 of 5

Average

Average Delay Time 22 min

This flight has an average delay of 22 minutes with a standard deviation of 21.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.