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(KL) KLM 4821 On-Time Performance Rating

Date Range:

01-May-2025 to 30-Jun-2025

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
42
70%
Late
9
15%
Very Late
4
7%
Excessive
4
7%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
23
Codeshares
60
Average Delay (min.)
29.391304347826086
Standard Deviation
21
Min
0
Max
82

KL 4821 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 70%
Average Delay Time 29.391304347826086 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 50% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 29.391304347826086 min
This flight has an average delay of 29.391304347826086 minutes with a standard deviation of 21 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.