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(UA) United Airlines 1538 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(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
33
73%
Late
1
2%
Very Late
3
7%
Excessive
8
18%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
64.23529411764706
Standard Deviation
63.8
Min
0
Max
235

UA 1538 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 73%
Average Delay Time 64.23529411764706 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 19% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 64.23529411764706 min
This flight has an average delay of 64.23529411764706 minutes with a standard deviation of 63.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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