What is the difference between economy, business, and first class?

The main differences between Economy, Business, and First Class on airlines revolve around comfort, service, and amenities:

• Economy Class - Basic comfort and service, most affordable. Has the most affordable option, with the lowest cost among the three classes;
• Business Class - Enhanced comfort, superior service, and additional amenities, with a moderate price increase;
• First Class - Luxurious comfort and premium service, with the highest price.
  
  

Each class offers a different level of comfort and service, so your choice will depend on your budget, preferences, and travel needs.