If you cancel, you will usually receive a small refund or travel credit. However, most economy tickets are non-refundable. Even though they cost more, refundable economy tickets provide a complete refund if they are canceled in compliance with Singapore Airlines cancellation policy.
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Yes, you will get a complete if you cancel your flight within 24 hours. You have 24 hours to cancel your flight for any reason and receive full reimbursement of your ticket price.
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