You must have at least 50% of the miles required for your award flight or upgrade already in your account.
Before you buy, compare the cost to the potential redemption value. Redemption Type Estimated Value per Mile Recommendation ~4.0 cents (USD) Expensive; use only for small gaps. Business Class Award 1.5 – 2.0+ cents (SGD) Best value for purchased miles. Economy Class Award 1.1 – 1.3 cents (SGD) Poor value; better to pay cash for the ticket. Retail (KrisShop/Kris+) ~1.0 cent (SGD) Lowest value; avoid using purchased miles here. singapore air buy miles
Programs like Marriott Bonvoy allow transfers. In April 2026, a 50% bonus on transfers to Marriott is available. You must have at least 50% of the
Spend at local merchants to earn up to 9 miles per dollar (mpd). In April 2026, the "Weekly Streaks" challenge offers up to 1,500 bonus miles for spending $100 per week. Business Class Award 1