(WN) Southwest Airlines 577 On-Time Performance Rating

Date Range:

15-Feb-2025 to 15-Apr-2025

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)

On-Time

89%

Late

11%

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.)

9.125

Standard Deviation

5.4

Min

Max

WN 577 On-Time Performance Details

Overall Rating

4.4 of 5

Good

Percentage On-Time 89%

Average Delay Time 9.125 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 86% of all other flights in the FlightStats database.

On-Time Performance Rating

4.3 of 5

Good

Percentage On-Time 89%

This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.

Delay Performance

4.4 of 5

Good

Average Delay Time 9.125 min

This flight has an average delay of 9.125 minutes with a standard deviation of 5.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 88% of other flights.