lifestyle The best and worst times to book plane tickets if you’re trying to save money By: Alex In: Interesting, Lifestyle, Travel Mar 23, 2018 243 Liked! 29 Disliked 0 1 To get the best seat selection and largest variety of airlines to choose from, book 169 to 319 days in advance. This is not the cheapest time to book, however, as tickets will cost an average of $50 more. Like this post? 243 Liked! 0