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(KL) KLM 8421 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(KSU) Kristiansund Kvernberget Airport

Kristiansund, NO

(OSL) Oslo Gardermoen Airport

Oslo, NO

On-Time Performance Chart

(using rounded numbers)
On-Time
42
88%
Late
1
2%
Very Late
1
2%
Excessive
2
4%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
48
Total Delays ( > 1 min )
16
Codeshares
48
Average Delay (min.)
17
Standard Deviation
21.3
Min
0
Max
79

KL 8421 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 88%
Average Delay Time 17 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. 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
4.2 of 5
Good
Average Delay Time 17 min
This flight has an average delay of 17 minutes with a standard deviation of 21.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.