The Wall Street Journal’s Scott McCartney has some suggestions. Bottom line: if you buy your tickets midweek (i.e., Tuesday, Wednesday, or Thursday), you can save a bundle. One expert, FareCompare.com’s Rick Seaney, has even pinpointed an ideal time to buy: 3pm EST on Tuesday. So why do fares work this way, anyway?

via When to buy airline tickets: Getting the cheapest flights | The Economist.