background

(WS) WestJet 8591 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(PWM) Portland International Jetport

Portland, ME, US

(LGA) New York LaGuardia Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
30
58%
Late
9
17%
Very Late
2
4%
Excessive
9
17%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
52
Total Delays ( > 1 min )
25
Codeshares
52
Average Delay (min.)
57.12
Standard Deviation
74.8
Min
0
Max
334

WS 8591 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 58%
Average Delay Time 57.12 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 58%
This flight has an on-time performance of 58%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 57.12 min
This flight has an average delay of 57.12 minutes with a standard deviation of 74.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.