In the airline industry, R class is a booking code that most commonly represents a discounted Business Class fare. On premium carriers like Qatar Airways, "R" is specifically designated as the Business Class Classic tier. While passengers in this class still enjoy the luxury of a lie-flat seat and 5-star onboard dining, the fare is "unbundled," meaning it typically excludes advance seat selection and lounge access unless the traveler has elite status or pays an additional fee. On other airlines, R class may be used for specific "leisure" business fares or even "Premium Economy" on certain carriers. In some older systems, it was also used for Supersonic travel (Concorde) or as a code for "Standby" or "Reward" tickets. Because these letter codes define everything from baggage allowance to frequent flyer miles earned, it is crucial to verify the specific terms of your "R" fare before booking to ensure you aren't surprised by a lack of lounge access.