https://sangamhelpdesk.microsoftcrmportals.com/forums/support-forum/f74e25b6-bbd9-ef11-95f5-000d3a03b580 The cheapest day to book Delta ????irlines is typically Tuesday, especially in the afternoon. This is when Flight adjusts prices to match competitors, creating budget-friendly options. To maximize savings, book early in the week and avoid weekends, when demand and prices are usually higher.