background

(WN) Southwest Airlines 1257 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-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
13
81%
Late
3
19%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
16
Standard Deviation
4.5
Min
0
Max
22

WN 1257 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 81%
Average Delay Time 16 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 66% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 81%
This flight has an on-time performance of 81%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 16 min
This flight has an average delay of 16 minutes with a standard deviation of 4.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

Other Stops for WN 1257