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(AC) Air Canada 4001 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
46
70%
Late
4
6%
Very Late
3
5%
Excessive
8
12%
Cancelled
0
0%
Diverted
5
8%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
24
Codeshares
61
Average Delay (min.)
59.541666666666664
Standard Deviation
112.4
Min
0
Max
494

AC 4001 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 75%
Average Delay Time 59.541666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 33% of all other flights in the FlightStats database.
On-Time Performance Rating
3.3 of 5
Average
Percentage On-Time 75%
This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 59.541666666666664 min
This flight has an average delay of 59.541666666666664 minutes with a standard deviation of 112.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.