background

(KL) KLM 4803 On-Time Performance Rating

Date Range:

01-Mar-2026 to 30-Apr-2026

(BOS) Boston Logan International Airport

Boston, MA, US

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
25
93%
Late
0
0%
Very Late
0
0%
Excessive
1
4%
Cancelled
1
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
27
Total Delays ( > 1 min )
2
Codeshares
27
Average Delay (min.)
27.5
Standard Deviation
33.2
Min
0
Max
51

KL 4803 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 93%
Average Delay Time 27.5 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 77% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 93%
This flight has an on-time performance of 93%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 27.5 min
This flight has an average delay of 27.5 minutes with a standard deviation of 33.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

Other Stops for KL 4803