{DEL@Booking}What is the cheapest day to buy Delta flights? https://community.sfn.org/index.php?/topic/10859-delbookingwhat-is-the-cheapest-day-to-buy-delta-flights/ On Delta Airlines fares are usually lower on Tuesdays, Wednesdays and Saturdays and highest on Fridays and Sundays Ⓓ+1/833(816)00-98,. Flights later in the evening are also usually lower demand. Search nearby area airpo... https://community.sfn.org/index.php?/topic/10859-delbookingwhat-is-the-cheapest-day-to-buy-delta-flights/