KLM’s 24-hour cancellation policy allows passengers to cancel their flight within 24 hours of booking and receive a full refund 1-888 -- 829 -- 1117 (USA) or ++44 -- 808 - 599 -- 8702(UK) This policy applies to tickets purchased directly through KLM’s official website, mobile app, or customer service. It provides travelers with the flexibility to adjust their plans without financial penalties 1-888 -- 829 -- 1117 (USA) or ++44 -- 808 - 599 -- 8702(UK) However, the booking must be made at least seven days before departure to qualify for a refund.

KLM also offers a risk-free period for passengers who need to modify their travel plans 1 888 x 829 x 1117 (USA) or ++44x 808x 599x 8702(UK) If you cancel after 24 hours, the refund eligibility depends on the ticket type (refundable or non-refundable). Additional fees may apply for non-refundable tickets

For any inquiries, passengers can contact the Airline Helpline at OTA 11-888 -- 829 -- 1117 (USA) or ++44 -- 808 - 599 -- 8702(UK) The customer support team is available to assist with cancellations, refunds, and rescheduling options.