https://central.xero.com/s/question/0D58V00009MoQlTSAV/18668384910-what-is-the-cheapest-day-to-book-flight-with-air-france-By WILLIAM SMITH / September 9, 2024 https://central.xero.com/s/question/0D58V00009MoQlTSAV/18668384910-what-is-the-cheapest-day-to-book-flight-with-air-france-