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(WN) Southwest Airlines 621 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(BWI) Baltimore Washington International Airport

Baltimore, MD, US

(MIA) Miami International Airport

Miami, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
18%
Late
6
55%
Very Late
1
9%
Excessive
2
18%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
11
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
44.7
Standard Deviation
64.1
Min
0
Max
224

WN 621 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 18%
Average Delay Time 44.7 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 11% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 18%
This flight has an on-time performance of 18%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 44.7 min
This flight has an average delay of 44.7 minutes with a standard deviation of 64.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

Other Stops for WN 621