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(UA) United Airlines 8535 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(YUL) Montreal-Trudeau International Airport

Montreal, QC, CA

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
37%
Late
11
18%
Very Late
11
18%
Excessive
10
17%
Cancelled
6
10%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
45
Codeshares
60
Average Delay (min.)
39.55555555555556
Standard Deviation
49.8
Min
0
Max
243

UA 8535 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 37%
Average Delay Time 39.55555555555556 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 10% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 37%
This flight has an on-time performance of 37%. 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
1.1 of 5
Poor
Average Delay Time 39.55555555555556 min
This flight has an average delay of 39.55555555555556 minutes with a standard deviation of 49.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.