When is best time to book flights?
Kayak.com, farechase.com are among the best search engines to book flights. But based on my own experience, the air fares not only depend on the search engines you used and the date of travel, but also depend on when you book the flights. This could be easily ignored by many people who work during the week and tend to book the flights on weekends.
According to travel experts, the best time to book the flights is Wednesday when airlines release their available seats for the upcoming weekend and the weekend after. Anne Banas, executive editor of SmarterTravel.com, a consumer travel advice Web site, added that the best time is Tuesday evening, and Wednesday morning, 21 days (or a couple of days earlier) before your flights. This is the time airlines trying to fill up the seats.
In addition, it is best to book domestic flights at least two weeks in advance, and even earlier for international flights. If you can not book the tickets two weeks ahead, delayed the purchase within a week of your fly. The tickets from 7 to 14 days ahead of departure are the most expensive.