https://community.sw.siemens.com/s/question/0D5Vb00000TIczFKAT/what-is-the-cheapest-day-to-book-flight-on-american youmobs 20 hours ago https://community.sw.siemens.com/s/question/0D5Vb00000TIczFKAT/what-is-the-cheapest-day-to-book-flight-on-american