https://community.ring.com/conversations/ring-home-plan/1-best-daywhat-is-the-cheapest-day-to-buy-air-france-tickets/67ec19fcdedd5e250dd2248c
https://community.ring.com/conversations/ring-home-plan/1-best-daywhat-is-the-cheapest-day-to-buy-air-france-tickets/67ec19fcdedd5e250dd2248c