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(UA) United Airlines 8586 On-Time Performance Rating

Date Range:

15-Sep-2025 to 15-Nov-2025

(YYC) Calgary International Airport

Calgary, AB, CA

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
13
59%
Late
7
32%
Very Late
0
0%
Excessive
2
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
15
Codeshares
22
Average Delay (min.)
23.333333333333332
Standard Deviation
30.2
Min
0
Max
122

UA 8586 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 59%
Average Delay Time 23.333333333333332 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 36% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 59%
This flight has an on-time performance of 59%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 23.333333333333332 min
This flight has an average delay of 23.333333333333332 minutes with a standard deviation of 30.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.