(WS) WestJet 7138 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-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

80%

Late

20%

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.)

Standard Deviation

Min

Max

WS 7138 On-Time Performance Details

Overall Rating

2.9 of 5

Average

Percentage On-Time 80%

Average Delay Time 18 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.

On-Time Performance Rating

2.7 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.

Delay Performance

3.1 of 5

Average

Average Delay Time 18 min

This flight has an average delay of 18 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.