https://www.entmasterclass.com/forum/general-discussion/delta-what-day-of-the-week-are-delta-flights-cheapest-b-yl-ri-i-shttps://www.entmasterclass.com/forum/general-discussion/delta-what-day-of-the-week-are-delta-flights-cheapest-b-yl-ri-i-shttps://www.entmasterclass.com/forum/general-discussion/delta-what-day-of-the-week-are-delta-flights-cheapest-b-yl-ri-i-shttps://www.entmasterclass.com/forum/general-discussion/delta-what-day-of-the-week-are-delta-flights-cheapest-b-yl-ri-i-shttps://www.entmasterclass.com/forum/general-discussion/delta-what-day-of-the-week-are-delta-flights-cheapest-b-yl-ri-i-s