As any procrastinator can attest, you’ll usually pay a big premium by waiting until the last minute to book a flight. But you’ll also pay more if you purchase your tickets too far in advance. So when should you book a flight to get the lowest fare?
To answer that question, airfare shopping engine CheapAir.com monitored fares for more than 4 million flights in 2013 over a booking period ranging from 320 days in advance to one day in advance. Its researchers found that fares for domestic flights were lowest 54 days in advance. That’s an average, though. There’s actually a prime booking
window between 104 days