In the world of airline fare codes, "R" is typically a discounted Business Class fare basis. Historically, "J" or "C" represent full-fare Business Class, while letters like "D," "I," and "R" are used for promotional or lower-cost tickets. However, the meaning of "R" became particularly significant with Qatar Airways, which used it to launch their "Business Class Classic" product. This specific "R" fare is essentially a "unbundled" business class experience—it offers the premium seat and onboard dining but often excludes lounge access and advance seat selection unless the passenger has elite status with an alliance like Oneworld. Other airlines may use "R" as a code for revenue-managed seats or even for "Premium Economy" in certain regional contexts, but in 2026, it is most commonly associated with these "Light" or "Basic" business class tiers. Always check the fare rules for an "R" class ticket, as it may also earn fewer frequent flyer miles and come with stricter cancellation or change fees compared to a standard business class fare.