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(WN) Southwest Airlines 1257 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(BWI) Baltimore Washington International Airport

Baltimore, MD, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
13
81%
Late
0
0%
Very Late
2
13%
Excessive
1
6%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
19.375
Standard Deviation
18.2
Min
0
Max
54

WN 1257 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 81%
Average Delay Time 19.375 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 19.375 min
This flight has an average delay of 19.375 minutes with a standard deviation of 18.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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