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(AY) Finnair 439 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(HEL) Helsinki-Vantaa Airport

Helsinki, FI

(OUL) Oulu Airport

Oulu, FI

On-Time Performance Chart

(using rounded numbers)
On-Time
37
86%
Late
4
9%
Very Late
0
0%
Excessive
0
0%
Cancelled
2
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
8.789473684210526
Standard Deviation
6.9
Min
0
Max
24

AY 439 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 86%
Average Delay Time 8.789473684210526 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
4.8 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
4.9 of 5
Very Good
Average Delay Time 8.789473684210526 min
This flight has an average delay of 8.789473684210526 minutes with a standard deviation of 6.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 97% of other flights.