(AY) Finnair 4109 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(DFW) Dallas Fort Worth International Airport

Dallas, TX, US

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)

On-Time

50%

Late

50%

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

13.75

Standard Deviation

5.1

Min

Max

AY 4109 On-Time Performance Details

Overall Rating

2.5 of 5

Average

Percentage On-Time 50%

Average Delay Time 13.75 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 49% of all other flights in the FlightStats database.

On-Time Performance Rating

0.9 of 5

Poor

Percentage On-Time 50%

This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.

Delay Performance

4.1 of 5

Good

Average Delay Time 13.75 min

This flight has an average delay of 13.75 minutes with a standard deviation of 5.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.