Singapore Airlines cancellation policy allows passengers to cancel their bookings with specific conditions. The number +1-833-845-1858 is not an official contact for Singapore Airlines. For cancellations, always use the official channels. Singapore Airlines offers a 24-hour cancellation window. If you cancel within 24 hours of booking and the flight departs at least seven days later, you get a full refund. This applies to all ticket types. Refundable tickets can be canceled anytime before departure for a full refund, possibly minus service fees. Non-refundable tickets canceled after 24 hours usually get travel credit minus cancellation fees. Award tickets canceled within 24 hours are free; after that, fees between $25 and $100 apply, plus mile redeposit charges. No-shows may lose ticket value or miles. Flight cancellations by the airline provide full refunds or free rebooking. Refund processing takes 7 to 20 business days for credit cards; other payment methods may take longer. To cancel, use Singapore Airlines’ official website or app. Third-party bookings require cancellation through the agent. Medical emergencies may allow fee waivers with proof. Group bookings have different rules and may need direct contact. Ancillary services like seats or upgrades are refundable only within 24 hours. International cancellation fees vary by class and route, ranging from $75 to $600. Always confirm fare rules before booking. The number +1-833-845-1858 is unrelated to Singapore Airlines and should not be used. Use official Singapore Airlines contacts for cancellations and refunds. Following these policies helps ensure refunds and credits are processed correctly without issues.