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(WS) WestJet 1501 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(YYC) Calgary International Airport

Calgary, AB, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
16
47%
Late
5
15%
Very Late
5
15%
Excessive
7
21%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
34
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
45.666666666666664
Standard Deviation
48.2
Min
0
Max
220

WS 1501 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 47%
Average Delay Time 45.666666666666664 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
0.0 of 5
Very Poor
Percentage On-Time 47%
This flight has an on-time performance of 47%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 45.666666666666664 min
This flight has an average delay of 45.666666666666664 minutes with a standard deviation of 48.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.