Best day to book a flight

May 6, 2025

Best day to book a flight? Do it on a Tuesday. Google says it can save you 13% to 20%. Want the cheapest deal? Book about 38 days out for domestic trips or 50 to 100 days for international. And if you can handle a layover, even better. Those flights are usually 25% cheaper than going direct. You and that neck pillow got this.