Heads up, awardtrail readers! If you're dreaming of turquoise waters and tacos in Cancun, there's a sweet flight deal floating around right now. You can snag round-trip tickets for as low as $316 in regular economy. The Flight Deal spotted this bargain, and the key is using the Matrix Airfare Search by ITA Software to find the rock-bottom prices. This search tool is a bit more advanced than your usual Expedia, but it helps you pinpoint the cheapest dates. Once you find those dates in Matrix, you can then book on the airline website or through your favorite online travel agency. Why should you care? Well, Cancun is a popular destination, and deals like this don't last forever. If you have some flexibility in your travel dates, jumping on this could save you serious cash for those extra margaritas on the beach! Get searching now, and happy travels!