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(OS) Austrian 551 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(VIE) Vienna International Airport

Vienna, AT

(FCO) Rome Leonardo da Vinci Fiumicino Airport

Rome, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
48
86%
Late
4
7%
Very Late
1
2%
Excessive
2
4%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
56
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
15.80952380952381
Standard Deviation
21.5
Min
0
Max
95

OS 551 On-Time Performance Details

Overall Rating
4.7 of 5
Very Good
Percentage On-Time 86%
Average Delay Time 15.80952380952381 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.7 shows that this flight has on-time performance characteristics better than 93% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 15.80952380952381 min
This flight has an average delay of 15.80952380952381 minutes with a standard deviation of 21.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.