Le Pass from Air France and Optiontown allows you to conveniently pre-purchase flights for one or multiple destinations at a pre-set, fixed price. You can customize your own Pass by defining your own set of travel conditions (advance booking, week end stay, ...).
As long as a flight is open for sale, you will be able to book a seat at the price and conditions you defined. When you purchase a Pass, there is no need to indicate the date of travel until you are actually ready to book your flight.
All flights operated by Air France, Joon and HOP, and also some flights operated by code share airline partners of Air France are eligible for the Pass.