Travel Services
At the KLM Airlines JFK Terminal, boarding was remarkably smoothly run. The boarding groups were called in a systematic manner, and the gate area in Terminal 4 was well signposted.
https://www.terminalfind.com/klm-airlines/klm-airlines-jfk-terminal-john-f-kennedy-international-airport/
USA - Kammern im Liesingtal, 6 435454