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(WS) WestJet 8579 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
5
83%
Late
0
0%
Very Late
0
0%
Excessive
1
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
6
Total Delays ( > 1 min )
2
Codeshares
6
Average Delay (min.)
105
Standard Deviation
142.8
Min
0
Max
206

WS 8579 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 83%
Average Delay Time 105 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.
On-Time Performance Rating
3.8 of 5
Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 76% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 105 min
This flight has an average delay of 105 minutes with a standard deviation of 142.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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