(WS) WestJet 6428 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

88%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

97.66666666666667

Standard Deviation

163.1

Min

Max

286

WS 6428 On-Time Performance Details

Overall Rating

2.5 of 5

Average

Percentage On-Time 94%

Average Delay Time 97.66666666666667 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 48% of all other flights in the FlightStats database.

On-Time Performance Rating

4.8 of 5

Very Good

Percentage On-Time 94%

This flight has an on-time performance of 94%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.

Delay Performance

0.1 of 5

Very Poor

Average Delay Time 97.66666666666667 min

This flight has an average delay of 97.66666666666667 minutes with a standard deviation of 163.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 3% of other flights.