https://support.accountingseed.com/hc/en-us/community/posts/33969048142227-What-are-the-cheapest-days-to-fly-on-American-%F0%9D%94%B8%F0%9D%95%9A%F0%9D%95%A3lines-booking-flight
https://community.servicetitan.com/t5/General-Office/Best-Deals-What-day-is-cheapest-to-book-American-Airlines-AA/m-p/64797#M8468
https://community.servicetitan.com/t5/General-Office/A-A-Help-Desk-What-day-is-cheapest-to-book-American-Airlines/m-p/65959#M9067
