Yes, we know. It was just a few weeks ago that we ran a post about Southwest's great summer sale, but crazy as it is, a new Southwest summer sale is even better, especially for beach bums and foodie types.   

The carrier is offering great rates for one way flights to Costa Rica, Belize, Cabo, and Cancun for later this summer, or, if you're more of a live-to-dine wanderer, a quick steal away to Mexico City may be in order soon. Most of these great rates are for August and September tickets, so plan that Labor Day summer vacation accordingly (we have some itinerary suggestions below). Here are the best flight deals:

• San Jose, Costa Rica, $129
• Mexico City, $88
• Cabo San Lucas, $138
• Cancun, $138
• Puerto Vallarta, $138
• Belize City, Belize, $110

Also, one-way flights to New Orleans and Memphis are just $49 (as are most one-way flights to all Texas hubs).  Need some help planning your trip?  Check out The Houstonian's Ultimate Guide to Mexico and more of our recent travel recommendations to Belize, as well as Cancun and its surrounding area, and to the Hotel San Cristobal in Cabo.