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(AY) Finnair 3991 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
65%
Late
2
6%
Very Late
3
9%
Excessive
4
12%
Cancelled
1
3%
Diverted
2
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
16
Codeshares
32
Average Delay (min.)
25.3125
Standard Deviation
24.2
Min
0
Max
76

AY 3991 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 69%
Average Delay Time 25.3125 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 48% of all other flights in the FlightStats database.
On-Time Performance Rating
1.1 of 5
Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 21% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 25.3125 min
This flight has an average delay of 25.3125 minutes with a standard deviation of 24.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.