(WS) WestJet 6577 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

50%

Late

Very Late

Excessive

50%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

Min

Max

WS 6577 On-Time Performance Details

Overall Rating

1.8 of 5

Average

Percentage On-Time 50%

Average Delay Time 31 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 35% of all other flights in the FlightStats database.

On-Time Performance Rating

0.9 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 18% of other flights.

Delay Performance

2.7 of 5

Average

Average Delay Time 31 min

This flight has an average delay of 31 minutes with a standard deviation of 24 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.