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(OS) Austrian 521 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(VIE) Vienna International Airport

Vienna, AT

(VCE) Venice Marco Polo Airport

Venice, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
23
96%
Late
1
4%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
5.9
Standard Deviation
6.7
Min
0
Max
23

OS 521 On-Time Performance Details

Overall Rating
4.8 of 5
Very Good
Percentage On-Time 96%
Average Delay Time 5.9 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.8 shows that this flight has on-time performance characteristics better than 95% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 96%
This flight has an on-time performance of 96%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
4.7 of 5
Very Good
Average Delay Time 5.9 min
This flight has an average delay of 5.9 minutes with a standard deviation of 6.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 93% of other flights.

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