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(KL) KLM 621 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
50
85%
Late
4
7%
Very Late
1
2%
Excessive
3
5%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
23
Codeshares
0
Average Delay (min.)
16.82608695652174
Standard Deviation
21.6
Min
0
Max
80

KL 621 On-Time Performance Details

Overall Rating
4.7 of 5
Very Good
Percentage On-Time 85%
Average Delay Time 16.82608695652174 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.7 shows that this flight has on-time performance characteristics better than 92% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. 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
4.6 of 5
Very Good
Average Delay Time 16.82608695652174 min
This flight has an average delay of 16.82608695652174 minutes with a standard deviation of 21.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.