Tip - Want cheap airfare? This is the best day to book a plane ticket

Domestic airfare prices changes frequently, making it hard to know when to buy.
Tags: how to get cheap airfare, best time to buy airplane tickets, best time to fly, how to find cheap tickets, when to buy airfare, when to buy airplane tickets, travel tips, how to save money on airfare, tips for cheap airfare, how early buy airfare, cheapair.com, travel tips