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(KL) KLM 4640 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(JNB) Johannesburg O.R. Tambo International Airport

Johannesburg, ZA

(LUN) Kenneth Kaunda International Airport

Lusaka, ZM

On-Time Performance Chart

(using rounded numbers)
On-Time
51
84%
Late
8
13%
Very Late
1
2%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
37
Codeshares
61
Average Delay (min.)
10.513513513513514
Standard Deviation
11.5
Min
0
Max
60

KL 4640 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 84%
Average Delay Time 10.513513513513514 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
4.7 of 5
Very Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.
Delay Performance
5.0 of 5
Very Good
Average Delay Time 10.513513513513514 min
This flight has an average delay of 10.513513513513514 minutes with a standard deviation of 11.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 99% of other flights.