Best Time To Book A Flight For May 2025. Conventional wisdom for many years was to book your flights on tuesdays to get the. So, to help you secure the best possible deals, jason higgs, senior deals strategist at proxy coupons, shares his expert advice on the optimal timing to book your 2025 travel.

If you wait much longer, you can expect prices to rise as your trip gets closer. Generally, the best time to book a domestic flight is between one to three months before departure.