The ideal window was between September and late October . Booking 61–90 days out could yield savings of up to 10%.
For the 2017 holiday season, the best time to book domestic flights was generally . Historically, prices for Thanksgiving and Christmas flights began to climb steadily after Halloween, with average fares increasing by approximately $1 per day starting in November and jumping as much as $10 per day in the two weeks immediately preceding the holidays. Optimal Booking Windows best time to buy holiday flights 2017
Data from 2017 travel reports identified specific "sweet spots" for securing the best rates: The ideal window was between September and late October