(WS) WestJet 8638 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

78%

Late

Very Late

Excessive

11%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

99.57142857142857

Standard Deviation

121

Min

Max

266

WS 8638 On-Time Performance Details

Overall Rating

2.2 of 5

Average

Percentage On-Time 84%

Average Delay Time 99.57142857142857 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.

On-Time Performance Rating

4.3 of 5

Good

Percentage On-Time 84%

This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.

Delay Performance

0.0 of 5

Very Poor

Average Delay Time 99.57142857142857 min

This flight has an average delay of 99.57142857142857 minutes with a standard deviation of 121 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.