The primary difference between Economy Light and Economy Classic (common on European carriers like Lufthansa and Air France/KLM) centers on baggage and flexibility. Economy Light is a "basic" fare designed for travelers with only carry-on luggage; it does not include a checked bag, and adding one later often costs significantly more than the initial fare difference. Additionally, Light fares are usually non-refundable and non-changeable, or require a very high fee for any modifications. In contrast, Economy Classic typically includes one checked bag (usually up to 23 kg) and allows for advanced seat selection at no extra cost. Classic fares also offer more flexibility, allowing for rebooking (sometimes for a lower fee or just the fare difference) and are more likely to earn higher amounts of frequent flyer miles. For travelers who need to check a suitcase or want the peace of mind to change their flight dates, the Classic fare is generally the better value.