background

(AC) Air Canada 4521 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(DEN) Denver International Airport

Denver, CO, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
55
89%
Late
3
5%
Very Late
1
2%
Excessive
2
3%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
12
Codeshares
61
Average Delay (min.)
21.25
Standard Deviation
19.3
Min
0
Max
60

AC 4521 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 90%
Average Delay Time 21.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 21.25 min
This flight has an average delay of 21.25 minutes with a standard deviation of 19.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.