https://community.powerplatform.com/forums/thread/details/?threadid=f91408a7-6955-ef11-a317-00224825204d What is the 24 hour rule for KLM? $KLM[24hour]Help-Desk; What is KLM’s 24-hour cancellation policy? A: KLM allows passengers to cancel their flight booking within 24 hours of making the reservation without any cancellation fees $1; You can cancel your booking through their website, mobile app, or by calling their customer service at Toll-Free; #klmcustomerservice, #KLMPhoneNumber, #klm24hour