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(OZ) Asiana Airlines 9521 On-Time Performance Rating

Date Range:

01-May-2025 to 30-Jun-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
50
82%
Late
3
5%
Very Late
1
2%
Excessive
5
8%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
19
Codeshares
60
Average Delay (min.)
30.57894736842105
Standard Deviation
38.8
Min
0
Max
142

OZ 9521 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 83%
Average Delay Time 30.57894736842105 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 83% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 30.57894736842105 min
This flight has an average delay of 30.57894736842105 minutes with a standard deviation of 38.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.