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(KL) KLM 4821 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(JFK) New York John F. Kennedy International Airport

New York, NY, US

(MAN) Manchester Airport

Manchester, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
22
81%
Late
3
11%
Very Late
0
0%
Excessive
0
0%
Cancelled
2
7%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
27
Total Delays ( > 1 min )
5
Codeshares
27
Average Delay (min.)
11.4
Standard Deviation
7.9
Min
0
Max
19

KL 4821 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 82%
Average Delay Time 11.4 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 76% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 11.4 min
This flight has an average delay of 11.4 minutes with a standard deviation of 7.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.

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