0 {+61%1800^005*886}{{™QANTAS™ 24/7}} how do I cancel my flight ticket with Singapore Airline? Posted by Hanry Richard on October 16, 2024 at 0:23 you need to cancel your flight within the 24-hour window and at least 7 days before the scheduled departure. For any cancellation requests, you can contact Singapore at +61 (1800) 005 886 to get assistance immediately. Tags: {+61%1800^005*886}{{™qantas™ 247}} how do i cance