Cabin classes refer to the different levels of service and comfort offered on an aircraft. The main categories typically include Economy Class, Premium Economy, Business Class, and First Class. Each class varies in terms of seat size, legroom, amenities, and overall service quality, catering to different passenger needs and budgets. Economy Class is the most affordable option, while First Class provides the highest level of luxury, including spacious seating and gourmet meals. Business Class often strikes a balance between comfort and cost, offering enhanced services like priority boarding and access to airport lounges, making travel more enjoyable for professionals and frequent flyers.