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(KL) KLM 8421 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(KSU) Kristiansund Kvernberget Airport

Kristiansund, NO

(OSL) Oslo Gardermoen Airport

Oslo, NO

On-Time Performance Chart

(using rounded numbers)
On-Time
41
87%
Late
3
6%
Very Late
1
2%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
13
Codeshares
47
Average Delay (min.)
22.923076923076923
Standard Deviation
36.1
Min
0
Max
137

KL 8421 On-Time Performance Details

Overall Rating
4.4 of 5
Good
Percentage On-Time 87%
Average Delay Time 22.923076923076923 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 22.923076923076923 min
This flight has an average delay of 22.923076923076923 minutes with a standard deviation of 36.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.