: Many domestic fares reach their lowest point approximately 44 days before departure . If you are flying in mid-May, your target booking date would be around late March or early April.
: Early morning flights (before 9 AM) or late-night "red-eye" flights typically have lower demand and better prices. 2018 Historical Context When Is the Best Time to Buy Plane Tickets? - CLEAR best time to buy airline tickets for may 2018
: Midweek departures on Tuesday and Wednesday are consistently the most affordable. Saturdays can also offer lower fares compared to peak travel days. : Many domestic fares reach their lowest point