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(WS) WestJet 1520 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(YYC) Calgary International Airport

Calgary, AB, CA

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
43
72%
Late
9
15%
Very Late
2
3%
Excessive
6
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
22
Codeshares
0
Average Delay (min.)
34.22727272727273
Standard Deviation
32.4
Min
0
Max
114

WS 1520 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 72%
Average Delay Time 34.22727272727273 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 34.22727272727273 min
This flight has an average delay of 34.22727272727273 minutes with a standard deviation of 32.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.