background

(WS) WestJet 8499 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(GRR) Grand Rapids Gerald R. Ford International Airport

Grand Rapids, MI, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
86%
Late
1
3%
Very Late
0
0%
Excessive
4
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
9
Codeshares
36
Average Delay (min.)
49.55555555555556
Standard Deviation
62.3
Min
0
Max
199

WS 8499 On-Time Performance Details

Overall Rating
2.7 of 5
Average
Percentage On-Time 86%
Average Delay Time 49.55555555555556 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 52% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 49.55555555555556 min
This flight has an average delay of 49.55555555555556 minutes with a standard deviation of 62.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.