background

(WS) WestJet 8558 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(BTV) Patrick Leahy Burlington International Airport

Burlington, VT, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
70%
Late
4
9%
Very Late
1
2%
Excessive
7
16%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
17
Codeshares
44
Average Delay (min.)
76.88235294117646
Standard Deviation
102.2
Min
0
Max
383

WS 8558 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 71%
Average Delay Time 76.88235294117646 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 76.88235294117646 min
This flight has an average delay of 76.88235294117646 minutes with a standard deviation of 102.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.