background

(KL) KLM 3427 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(FCO) Rome Leonardo da Vinci Fiumicino Airport

Rome, IT

(CTA) Catania Fontanarossa Airport

Catania, IT

On-Time Performance Chart

(using rounded numbers)
On-Time
30
49%
Late
20
33%
Very Late
7
11%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
52
Codeshares
61
Average Delay (min.)
20.53846153846154
Standard Deviation
15.7
Min
0
Max
67

KL 3427 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 49%
Average Delay Time 20.53846153846154 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 46% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 49%
This flight has an on-time performance of 49%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
4.7 of 5
Very Good
Average Delay Time 20.53846153846154 min
This flight has an average delay of 20.53846153846154 minutes with a standard deviation of 15.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 95% of other flights.