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(KL) KLM 6421 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
74%
Late
4
17%
Very Late
0
0%
Excessive
2
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
9
Codeshares
23
Average Delay (min.)
26.555555555555557
Standard Deviation
32.5
Min
0
Max
101

KL 6421 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 74%
Average Delay Time 26.555555555555557 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 47% of all other flights in the FlightStats database.
On-Time Performance Rating
1.7 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 34% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 26.555555555555557 min
This flight has an average delay of 26.555555555555557 minutes with a standard deviation of 32.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

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