Southwest Airlines via DealBase offers 1-way flights to Latin America, with prices starting at $70. That's the lowest price we could find for select routes by $30. Book this travel deal by June 6 for travel from August 20 through December 11. Buy Now Tips On the DealBase landing page, click on "Southwest Airlines" in the top line to see this sale; we found lower fares within. We found this price on flights departing on August 20 from Ft. Lauderdale, FL (FLL) to Nassau, Bahamas (NAS). All prices, dates, and booking details were valid at the time of publication.