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(WS) WestJet 8789 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
57%
Late
5
14%
Very Late
3
9%
Excessive
7
20%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
23
Codeshares
35
Average Delay (min.)
60.08695652173913
Standard Deviation
121.7
Min
0
Max
593

WS 8789 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 57%
Average Delay Time 60.08695652173913 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 57%
This flight has an on-time performance of 57%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 60.08695652173913 min
This flight has an average delay of 60.08695652173913 minutes with a standard deviation of 121.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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