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(OS) Austrian 661 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(VIE) Vienna International Airport

Vienna, AT

(WAW) Warsaw Chopin Airport

Warsaw, PL

On-Time Performance Chart

(using rounded numbers)
On-Time
48
92%
Late
2
4%
Very Late
1
2%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
52
Total Delays ( > 1 min )
29
Codeshares
50
Average Delay (min.)
9.827586206896552
Standard Deviation
12.9
Min
0
Max
61

OS 661 On-Time Performance Details

Overall Rating
5.0 of 5
Very Good
Percentage On-Time 92%
Average Delay Time 9.827586206896552 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 5 shows that this flight has on-time performance characteristics better than 98% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 92%
This flight has an on-time performance of 92%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.9 of 5
Very Good
Average Delay Time 9.827586206896552 min
This flight has an average delay of 9.827586206896552 minutes with a standard deviation of 12.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 99% of other flights.