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(KL) KLM 4638 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(CPT) Cape Town International Airport

Cape Town, ZA

(MPM) Maputo International Airport

Maputo, MZ

On-Time Performance Chart

(using rounded numbers)
On-Time
27
84%
Late
5
16%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
21
Codeshares
32
Average Delay (min.)
8.333333333333334
Standard Deviation
6.9
Min
0
Max
23

KL 4638 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 84%
Average Delay Time 8.333333333333334 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 91% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
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 86% of other flights.
Delay Performance
4.9 of 5
Very Good
Average Delay Time 8.333333333333334 min
This flight has an average delay of 8.333333333333334 minutes with a standard deviation of 6.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 98% of other flights.

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