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(UA) United Airlines 8591 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(FRA) Frankfurt Airport

Frankfurt, DE

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
48
79%
Late
4
7%
Very Late
4
7%
Excessive
4
7%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
18
Codeshares
61
Average Delay (min.)
51.166666666666664
Standard Deviation
75.4
Min
0
Max
256

UA 8591 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 79%
Average Delay Time 51.166666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
3.9 of 5
Good
Percentage On-Time 79%
This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 79% of other flights.
Delay Performance
0.6 of 5
Poor
Average Delay Time 51.166666666666664 min
This flight has an average delay of 51.166666666666664 minutes with a standard deviation of 75.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 12% of other flights.