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(WS) WestJet 8811 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
49
89%
Late
2
4%
Very Late
2
4%
Excessive
1
2%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
54
Total Delays ( > 1 min )
11
Codeshares
54
Average Delay (min.)
21.272727272727273
Standard Deviation
23.9
Min
0
Max
84

WS 8811 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 91%
Average Delay Time 21.272727272727273 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 85% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 21.272727272727273 min
This flight has an average delay of 21.272727272727273 minutes with a standard deviation of 23.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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