background

(AC) Air Canada 4912 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
73%
Late
5
10%
Very Late
3
6%
Excessive
5
10%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
50
Total Delays ( > 1 min )
25
Codeshares
50
Average Delay (min.)
38.96
Standard Deviation
50.9
Min
0
Max
220

AC 4912 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 74%
Average Delay Time 38.96 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 38.96 min
This flight has an average delay of 38.96 minutes with a standard deviation of 50.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.