(WN) Southwest Airlines 121 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(BOI) Boise Air Terminal

Boise, ID, US

On-Time Performance Chart

(using rounded numbers)

On-Time

68%

Late

20%

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.)

20.357142857142858

Standard Deviation

Min

Max

WN 121 On-Time Performance Details

Overall Rating

2.3 of 5

Average

Percentage On-Time 68%

Average Delay Time 20.357142857142858 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.

On-Time Performance Rating

0.6 of 5

Poor

Percentage On-Time 68%

This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.

Delay Performance

3.9 of 5

Good

Average Delay Time 20.357142857142858 min

This flight has an average delay of 20.357142857142858 minutes with a standard deviation of 15 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.