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(AC) Air Canada 4988 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
71%
Late
3
11%
Very Late
1
4%
Excessive
2
7%
Cancelled
0
0%
Diverted
2
7%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
12
Codeshares
26
Average Delay (min.)
23.166666666666668
Standard Deviation
19.8
Min
0
Max
71

AC 4988 On-Time Performance Details

Overall Rating
2.8 of 5
Average
Percentage On-Time 77%
Average Delay Time 23.166666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 54% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 23.166666666666668 min
This flight has an average delay of 23.166666666666668 minutes with a standard deviation of 19.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.