The Best Day to Travel for Cheap Flights The better question to ask is what day of the week is cheapest to fly. And that means flying on off-peak days: Tuesdays, Wednesdays, and Saturdays are often much cheaper days to fly. Shifting your departure and return dates by just a day or two can save you hundreds of dollars.

Historically, Wednesday has been one of the cheapest days to both book and fly, though modern dynamic pricing in 2026 has made this less of a "hard rule." Airlines often release sales early in the week, and by Wednesday, remaining low-cost inventory for mid-week travel is often highlighted. Mid-week flights (Tuesday and Wednesday) generally see lower demand from both business travelers, who prefer Monday/Friday, and leisure travelers, who favor weekends. Consequently, you are more likely to find lower fares and more open seats on a Wednesday. However, for the absolute lowest prices, it is more important to avoid major holidays and peak seasons than to rely solely on the day of the week. Booking at least 3 to 6 weeks in advance for domestic flights remains the most effective way to secure a deal, regardless of whether you click "purchase" on a Wednesday or a Sunday.