Buy: Miles

: In some programs, purchasing a small number of miles counts as account activity, which can reset the expiration clock on your entire balance. Critical Considerations & Risks

: If you are just a few thousand miles short of a high-value redemption (like a long-haul Business or First Class flight), buying the difference is often cheaper than paying the full cash price for the ticket. buy miles

Doesn’t make sense to pay rent with a credit card? : r/personalfinance : In some programs, purchasing a small number