https://**********bluebeam.com/bluebeam-community/discussion/1218/%F0%9D%9F%8F-%F0%9D%9F%96%F0%9D%9F%95%F0%9D%9F%95-%F0%9D%9F%95%F0%9D%9F%91%F0%9D%9F%96-%F0%9D%9F%8E%F0%9D%9F%94%F0%9D%9F%8F%F0%9D%9F%93-what-is-the-cheapest-day-to-fly-on-delta-usa/p1?new=1