Air France has a miles program. With this program, you'll earn certain points every time you purchase items with Air France. The miles you earn depend on the class you choose, with higher classes giving you more miles per euro and lower classes giving you fewer. To earn miles, simply purchase items from Air France, such as airline tickets, services, or other items offered by the company. 

Any ticket will have miles, however, there are some things you can do to purchase them and also to maximize the value available. To achieve this, you should select these seats early, as this will give you the maximum number of points available to reserve them. You can also use promotional codes. 

Members of this program will be able to earn experience points. Just like in a video game, you can earn experience points by purchasing airline tickets or flying eligible flights with Air France or other members of the company. You can accumulate enough XP to advance through the ranks until you reach the desired rank.