KL661 KLM Royal Dutch Airlines - Flight Status

Which is the frequency of flight KL661?
The flight KL661 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight KL661?
The distance between the two airports is 8052 kilometers.

Which is the flight time of flight KL661?
The scheduled flight time gate to gate is: 10:40 hours.
The real flight time gate to gate on average is: 10:26 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Amsterdam: 2026-01-28 23:24:14
Current Time in Houston: 2026-01-28 16:24:14

The following airline serve the same route between Amsterdam and Houston:
United Airlines - Flight Number: UA21. (On Time performance: 76 - Average Delay: 15 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from July 22, 2025 to January 20, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from January 02, 2025 to December 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.