Business the play 24,500 pts SriLankan nonstop (oneworld), partner distance band
24,500 Avios (was 22,000 before 15-Dec-2025) for UL business nonstop — 3,000 under Thai's own-metal price for the same corridor, from a currency six Indian issuers feed. The quiet win of the Colombo set.
Feed it: 24,500 HDFC Reward Points (1:1) · 49,000 Amex Membership Rewards (2:1) · 24,500 HSBC Reward Points (1:1)
Thai Airways nonstop (Star Alliance), Royal Silk
Same 27,500-mile Royal Silk price Delhi pays — the India zone extends to Colombo. HDFC (2:1), Axis (1:2), HSBC and SBI (1:1) feed ROP; mind the hard 3-year expiry, and note UL via Avios does the same corridor up front for 3,000 fewer points.
Feed it: 13,750 Axis EDGE Miles (1:2) · 27,500 HSBC Reward Points (1:1) · 27,500 SBI Travel Credits (1:1)
Economy the play 12,500 pts SriLankan nonstop (oneworld), partner distance band
Same 1,151–2,000-mile band as Colombo–Singapore: 12,500 Avios one-way post-Dec-2025. Cheapest published seat on the corridor — though ex-CMB cash fares to Bangkok are budget-airline cheap, so run the arithmetic.
Feed it: 12,500 HDFC Reward Points (1:1) · 25,000 Amex Membership Rewards (2:1) · 12,500 HSBC Reward Points (1:1)
Thai Airways nonstop (Star Alliance), zone chart
Thai's direct-flight chart groups Colombo with India and Nepal: 17,500 miles one-way. At this corridor's cash fares that's thin value — the Royal Silk row below is where the chart earns its keep, and even that loses to Avios here.
Feed it: 8,750 Axis EDGE Miles (1:2) · 17,500 HSBC Reward Points (1:1) · 17,500 SBI Travel Credits (1:1)