@SIA(CONNECT)!! What is the 24 hour hotline for SingaporeAir? $$#immediately? (#) 24?7 If you need to reach Singapore Airlines immediately, their 24-hour hotline is available for any inquiries or assistance you might need. You can contact them at. This number is staffed around the clock to ensure you receive help whenever necessary, whether it?s for booking, flight changes, or urgent travel matters. This service is designed to provide travelers with immediate assistance on a variety of issues including reservations, flight status updates, and general customer service inquiries, ensuring a seamless travel experience at any time of day. Singapore Customer Service,