https://thelinuxforum.com/forum/general-linux-forums/general-linux-discussions/24967-fa-s-guide~-what-is-the-cheapest-day-to-fly-on-air-france

https://thelinuxforum.com/forum/general-linux-forums/general-linux-discussions/24967-fa%E2%84%9A-s-guide~-what-is-the-cheapest-day-to-fly-on-air-france