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(WS) WestJet 8391 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
8
89%
Late
0
0%
Very Late
0
0%
Excessive
1
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
9
Total Delays ( > 1 min )
2
Codeshares
9
Average Delay (min.)
45.5
Standard Deviation
53
Min
0
Max
83

WS 8391 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 89%
Average Delay Time 45.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 58% of all other flights in the FlightStats database.
On-Time Performance Rating
4.2 of 5
Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 45.5 min
This flight has an average delay of 45.5 minutes with a standard deviation of 53 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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