background

(OS) Austrian 551 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(VIE) Vienna International Airport

Vienna, AT

(FCO) Rome Leonardo da Vinci Fiumicino Airport

Rome, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
42
89%
Late
4
9%
Very Late
1
2%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
20
Codeshares
0
Average Delay (min.)
10.65
Standard Deviation
8.9
Min
0
Max
32

OS 551 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 89%
Average Delay Time 10.65 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.9 shows that this flight has on-time performance characteristics better than 96% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. 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
4.8 of 5
Very Good
Average Delay Time 10.65 min
This flight has an average delay of 10.65 minutes with a standard deviation of 8.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 96% of other flights.

Other Stops for OS 551