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(WS) WestJet 8790 On-Time Performance Rating

Date Range:

01-Jun-2025 to 31-Jul-2025

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
68%
Late
5
12%
Very Late
3
7%
Excessive
4
10%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
40
Total Delays ( > 1 min )
20
Codeshares
40
Average Delay (min.)
28.25
Standard Deviation
27.4
Min
0
Max
101

WS 8790 On-Time Performance Details

Overall Rating
3.1 of 5
Average
Percentage On-Time 70%
Average Delay Time 28.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.1 shows that this flight has on-time performance characteristics better than 61% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 28.25 min
This flight has an average delay of 28.25 minutes with a standard deviation of 27.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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