(WN) Southwest Airlines 257 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(ONT) Ontario International Airport

Ontario, CA, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)

On-Time

50%

Late

50%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

20.5

Standard Deviation

10.6

Min

Max

WN 257 On-Time Performance Details

Overall Rating

2.2 of 5

Average

Percentage On-Time 50%

Average Delay Time 20.5 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.

On-Time Performance Rating

1.1 of 5

Poor

Percentage On-Time 50%

This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.

Delay Performance

3.3 of 5

Average

Average Delay Time 20.5 min

This flight has an average delay of 20.5 minutes with a standard deviation of 10.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.