How long are Singapore Airlines refunds taking? – Skyairbus Cancelling your flight within 24 hours? Get a full refund within a week. If you used a card, expect it in 7-10 working days; cash or cheque, 10-20 working days. Cancelling through another website? Refund in seven days. No charges for online cancellations within 24 hours with Singapore Airlines. https://skyairbus.com/blog/how-long-are-singapore-airlines-refunds-taking/