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(UA) United Airlines 3509 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(YOW) Ottawa Macdonald-Cartier International Airport

Ottawa, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
13
93%
Late
1
7%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
14
Total Delays ( > 1 min )
7
Codeshares
14
Average Delay (min.)
9.714285714285714
Standard Deviation
5.9
Min
0
Max
18

UA 3509 On-Time Performance Details

Overall Rating
4.7 of 5
Very Good
Percentage On-Time 93%
Average Delay Time 9.714285714285714 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.7 shows that this flight has on-time performance characteristics better than 92% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 93%
This flight has an on-time performance of 93%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
4.5 of 5
Good
Average Delay Time 9.714285714285714 min
This flight has an average delay of 9.714285714285714 minutes with a standard deviation of 5.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 90% of other flights.

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