(WS) WestJet 6438 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(JFK) New York John F. Kennedy International Airport

New York, NY, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

57%

Late

Very Late

14%

Excessive

14%

Cancelled

Diverted

14%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

48.1

Min

Max

105

WS 6438 On-Time Performance Details

Overall Rating

1.2 of 5

Poor

Percentage On-Time 67%

Average Delay Time 71 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.

On-Time Performance Rating

1.5 of 5

Poor

Percentage On-Time 67%

This flight has an on-time performance of 67%. 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

0.9 of 5

Poor

Average Delay Time 71 min

This flight has an average delay of 71 minutes with a standard deviation of 48.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.