Vacations to Go offers a Carnival Cruise 7-Night Western Caribbean Cruise for two with prices starting at $958. That's tied with our mention from last week and the lowest price we could find for such a cruise in September by $380. This roundtrip cruise aboard the Carnival Breeze departs from Galveston, TX, on September 3 with stops in Cozumel, Mexico; Belize City, Belize; and Roatan, Honduras. Book this travel deal by July 1.