background

(AY) Finnair 5527 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(LHR) London Heathrow Airport

London, EN, GB

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
41
68%
Late
9
15%
Very Late
4
7%
Excessive
6
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
34
Codeshares
60
Average Delay (min.)
34.23529411764706
Standard Deviation
52.4
Min
0
Max
233

AY 5527 On-Time Performance Details

Overall Rating
0.9 of 5
Poor
Percentage On-Time 68%
Average Delay Time 34.23529411764706 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.9 shows that this flight has on-time performance characteristics better than 17% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 34.23529411764706 min
This flight has an average delay of 34.23529411764706 minutes with a standard deviation of 52.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.