https://supportcommunity.milestonesys.com/s/question/0D5bH00000ZDu21SAD/what-is-the-cheapest-day-to-book-flights-on-american-%F0%9D%94%B8%F0%9D%95%9A%F0%9D%95%A3%F0%9D%95%9D%F0%9D%95%9A%F0%9D%95%9F%F0%9D%95%96-cheapest?language=en_US
read more..