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(OZ) Asiana Airlines 9540 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
26
43%
Late
9
15%
Very Late
7
11%
Excessive
19
31%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
47
Codeshares
61
Average Delay (min.)
50.04255319148936
Standard Deviation
52.7
Min
0
Max
247

OZ 9540 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 43%
Average Delay Time 50.04255319148936 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 43%
This flight has an on-time performance of 43%. 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
0.2 of 5
Very Poor
Average Delay Time 50.04255319148936 min
This flight has an average delay of 50.04255319148936 minutes with a standard deviation of 52.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.