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(WS) WestJet 6423 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
39
95%
Late
1
2%
Very Late
0
0%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
7
Codeshares
41
Average Delay (min.)
42
Standard Deviation
90.7
Min
0
Max
247

WS 6423 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 95%
Average Delay Time 42 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 66% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 95%
This flight has an on-time performance of 95%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 42 min
This flight has an average delay of 42 minutes with a standard deviation of 90.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.

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