If you want to save money vacationing on a Caribbean island and avoid extreme summer weather while doing so, it's time to learn your ABCs. "I've seen a lot of deals coming up for the ABC islands, and that's Aruba, Bonaire and Curacao," Banas says. "They're interesting because they fall outside the hurricane belt, and hurricane season in the Atlantic is June through November." This island is almost synonymous with cheap Caribbean vacations, with Expedia offering four-night trips with airfare for $830 per person to $842 per person. Hotel rates can plunge as low as $69 a night in June. "Aruba's always been classically affordable," Banas says. "There are a lot of flights going in there, so it tends to be a very affordable island."