Tuesday! Just kidding. Kind of. For the last few years, a study about air travel trends by Expedia and Airlines Reporting Corporation supported the notion that travelers get better airfare deals on Tuesday afternoons (after the business travel rush died down). But the latest data—analyzing 10 billion (yes, billion) passenger flights from October 2014 and October 2015—shows that weekends are actually an ideal time to get a discount on a flight. “Most analyses show low air ticket prices on weekend days because that’s when many leisure travelers purchase tickets (and leisure tickets are much cheaper than business tickets).” There’s a caveat (isn’t there always?): Airlines change their fares multiple times a day, so it’s best to check often.