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(AY) Finnair 439 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(HEL) Helsinki-Vantaa Airport

Helsinki, FI

(OUL) Oulu Airport

Oulu, FI

On-Time Performance Chart

(using rounded numbers)
On-Time
32
80%
Late
4
10%
Very Late
3
8%
Excessive
0
0%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
40
Total Delays ( > 1 min )
16
Codeshares
0
Average Delay (min.)
15.5
Standard Deviation
11.6
Min
0
Max
38

AY 439 On-Time Performance Details

Overall Rating
4.4 of 5
Good
Percentage On-Time 80%
Average Delay Time 15.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.
On-Time Performance Rating
4.2 of 5
Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 15.5 min
This flight has an average delay of 15.5 minutes with a standard deviation of 11.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.