While historically Tuesday was considered the "magic" day to book, recent 2026 data from Expedia suggests that has emerged as the cheapest day to both book and depart, offering savings of about 3% compared to Sundays. Optimal Booking Windows
: 21 to 60 days before departure is the "sweet spot," with the absolute lowest prices often appearing around 44 days out . best time to buy cheap airline tickets
: Check fares for nearby secondary airports; for example, flying into Oakland instead of San Francisco can sometimes yield significant savings. While historically Tuesday was considered the "magic" day