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(UA) United Airlines 8638 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(YXU) London International Airport

London, ON, CA

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
44
72%
Late
3
5%
Very Late
1
2%
Excessive
3
5%
Cancelled
10
16%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
16
Codeshares
61
Average Delay (min.)
82.0625
Standard Deviation
158.4
Min
0
Max
454

UA 8638 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 72%
Average Delay Time 82.0625 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 82.0625 min
This flight has an average delay of 82.0625 minutes with a standard deviation of 158.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.