In 2026, Miles Rewards (often referring to the "Miles" app or general frequent flyer programs) is worth it if you are a frequent traveler or a high-volume credit card spender, but it requires a "strategic" approach. The value of a mile has stabilized at roughly 1.2 to 1.5 cents per mile across major carriers like Delta and United. For the casual traveler who flies once a year, "miles" may not be worth the effort of tracking, as they can expire or be devalued by the airline. However, for "travel hackers" who use co-branded credit cards for everyday purchases (groceries, gas, utilities), miles can translate into thousands of dollars in free Business Class international flights. In 2026, the real value lies in transferable points (like Amex or Chase) rather than being loyal to a single airline's "miles," as this allows you to move your rewards to whichever carrier offers the best "award seat" deal at that moment. Essentially, it's worth it if you treat it like a second currency rather than a passive hobby.