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(KL) KLM 4239 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(DAR) Dar es Salaam Julius Nyerere International Airport

Dar Es Salaam, TZ

(NBO) Nairobi Jomo Kenyatta International Airport

Nairobi, KE

On-Time Performance Chart

(using rounded numbers)
On-Time
46
78%
Late
0
0%
Very Late
2
3%
Excessive
7
12%
Cancelled
4
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
20
Codeshares
59
Average Delay (min.)
50.5
Standard Deviation
65
Min
0
Max
191

KL 4239 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 78%
Average Delay Time 50.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 30% of all other flights in the FlightStats database.
On-Time Performance Rating
2.7 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.
Delay Performance
0.4 of 5
Very Poor
Average Delay Time 50.5 min
This flight has an average delay of 50.5 minutes with a standard deviation of 65 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.