(WS) WestJet 5578 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)

On-Time

80%

Late

Very Late

Excessive

20%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

105.5

Standard Deviation

10.6

Min

Max

113

WS 5578 On-Time Performance Details

Overall Rating

1.9 of 5

Average

Percentage On-Time 80%

Average Delay Time 105.5 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 36% of all other flights in the FlightStats database.

On-Time Performance Rating

3.5 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.

Delay Performance

0.2 of 5

Very Poor

Average Delay Time 105.5 min

This flight has an average delay of 105.5 minutes with a standard deviation of 10.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.