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(UA) United Airlines 8533 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
34%
Late
17
28%
Very Late
5
8%
Excessive
13
21%
Cancelled
2
3%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
50
Codeshares
58
Average Delay (min.)
36
Standard Deviation
38.1
Min
0
Max
158

UA 8533 On-Time Performance Details

Overall Rating
0.9 of 5
Poor
Percentage On-Time 36%
Average Delay Time 36 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.9 shows that this flight has on-time performance characteristics better than 16% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 36%
This flight has an on-time performance of 36%. 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
1.7 of 5
Average
Average Delay Time 36 min
This flight has an average delay of 36 minutes with a standard deviation of 38.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.