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(KL) KLM 9257 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(GIG) Rio de Janeiro Galeao International Airport

Rio De Janeiro, RJ, BR

(GRU) Sao Paulo-Guarulhos International Airport

Sao Paulo, SP, BR

On-Time Performance Chart

(using rounded numbers)
On-Time
51
89%
Late
2
4%
Very Late
1
2%
Excessive
2
4%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
17
Codeshares
57
Average Delay (min.)
20
Standard Deviation
31.7
Min
0
Max
118

KL 9257 On-Time Performance Details

Overall Rating
4.7 of 5
Very Good
Percentage On-Time 90%
Average Delay Time 20 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
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 20 min
This flight has an average delay of 20 minutes with a standard deviation of 31.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.