https://www.mycompiler.io/view/Ew1P2yVwGpC [SIA~HelpDesk] Does Singapore Airlines have a 24 hour cancellation policy? (24/Help) If you cancel your Singapore flight within 24 hours of booking, you're eligible for a full refund. Contact customer service at ☎ 1-844-488-0875✈️ (US) or ☎ 1-844-488-0875✈️ (UK) to process your cancellation. Beyond this period, fees or charges may apply based on your fare type.