KL621 KLM Royal Dutch Airlines - Flight Status

Which is the frequency of flight KL621?
The flight KL621 is scheduled to flight on daily basis.

Which is the distance of flight KL621?
The distance between the two airports is 7068 kilometers.

Which is the flight time of flight KL621?
The scheduled flight time gate to gate is: 09:40 hours.
The real flight time gate to gate on average is: 08:02 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: 2025-10-31 16:52:52
Current Time in Atlanta: 2025-10-31 11:52:52

The following airlines serves the same route between Amsterdam and Atlanta:

Delta Air Lines
- Flight Number: DL71. (On Time performance: 84 - Average Delay: 23 minutes)
- Flight Number: DL73. (On Time performance: 49 - Average Delay: 37 minutes)
- Flight Number: DL75. (On Time performance: 66 - Average Delay: 17 minutes)

KLM Royal Dutch Airlines
- Flight Number: KL133.
- Flight Number: KL166. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: KL623.

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 April 27, 2025 to October 26, 2025. 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 October 02, 2024 to September 30, 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.