(WN) Southwest Airlines 931 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(ONT) Ontario International Airport

Ontario, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

71%

Late

29%

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.)

11.4

Standard Deviation

7.7

Min

Max

WN 931 On-Time Performance Details

Overall Rating

2.7 of 5

Average

Percentage On-Time 71%

Average Delay Time 11.4 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 53% of all other flights in the FlightStats database.

On-Time Performance Rating

1.5 of 5

Poor

Percentage On-Time 71%

This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.

Delay Performance

3.9 of 5

Good

Average Delay Time 11.4 min

This flight has an average delay of 11.4 minutes with a standard deviation of 7.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.