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(UA) United Airlines 1538 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-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
50
79%
Late
4
6%
Very Late
2
3%
Excessive
3
5%
Cancelled
2
3%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
50.68421052631579
Standard Deviation
113.2
Min
0
Max
454

UA 1538 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 82%
Average Delay Time 50.68421052631579 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 50.68421052631579 min
This flight has an average delay of 50.68421052631579 minutes with a standard deviation of 113.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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