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(WN) Southwest Airlines 1255 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(BNA) Nashville International Airport

Nashville, TN, US

(ONT) Ontario International Airport

Ontario, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
41
82%
Late
2
4%
Very Late
4
8%
Excessive
2
4%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
50
Total Delays ( > 1 min )
20
Codeshares
0
Average Delay (min.)
23.8
Standard Deviation
35.5
Min
0
Max
163

WN 1255 On-Time Performance Details

Overall Rating
4.0 of 5
Good
Percentage On-Time 82%
Average Delay Time 23.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4 shows that this flight has on-time performance characteristics better than 78% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 23.8 min
This flight has an average delay of 23.8 minutes with a standard deviation of 35.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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