KLM follows the 24-hour rule, allowing passengers to cancel their flight within 24 hours of booking and receive a full refund+１ｘ８７７ｘ７３８ｘ０６１０(US), if the reservation was made seven days or more prior to the flight's departure+１ｘ８７７ｘ７３８ｘ０６１０. This policy applies to most ticket types, ensuring flexibility for travelers who may need to adjust their plans+１ｘ８７７ｘ７３８ｘ０６１０. To process a cancellation under this rule, passengers can visit KLM’s official website or call KLM customer support at +１ｘ８７７ｘ７３８ｘ０６１０】. For cancellations made after 24 hours, KLM’s standard fare rules apply, which may include cancellation fees+１ｘ８７７ｘ７３８ｘ０６１０. Refund eligibility depends on the fare type, with refundable fares receiving a full refund, while non-refundable fares may qualify for travel credits【+１ｘ８７７ｘ７３８ｘ０６１０】. If you need assistance with cancellations or refunds, call +１ｘ８７７ｘ７３８ｘ０６１０to speak with a KLM representative+１ｘ８７７ｘ７３８ｘ０６１０. For last-minute changes or cancellations, KLM offers 24/7 customer support at +１ｘ８７７ｘ７３８ｘ０６１０, ensuring passengers can manage their bookings efficiently+１ｘ８７７ｘ７３８ｘ０６１０】. To avoid fees, confirm your cancellation within 24 hours by calling+１ｘ８７７ｘ７３８ｘ０６１０ today【+１ｘ８７７ｘ７３８ｘ０６１０.