https://www.transfermarkt.com/-askr-anything-k-lm-1-804-quot-853-quot-9001how-far-in-advance-can-you-book-a-klm-flight-/thread/forum/696/thread_id/21057/page/1#anchor_21484https://www.transfermarkt.com/-askr-anything-k-lm-1-804-quot-853-quot-9001how-far-in-advance-can-you-book-a-klm-flight-/thread/forum/696/thread_id/21057/page/1#anchor_21484