background

(UA) United Airlines 8529 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(BOS) Boston Logan International Airport

Boston, MA, US

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
43
70%
Late
5
8%
Very Late
4
7%
Excessive
3
5%
Cancelled
6
10%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
32
Codeshares
61
Average Delay (min.)
29.90625
Standard Deviation
65.6
Min
0
Max
325

UA 8529 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 71%
Average Delay Time 29.90625 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
0.6 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 29.90625 min
This flight has an average delay of 29.90625 minutes with a standard deviation of 65.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.