JetBlue Airways via ShermansTravel discounts JetBlue Airways Roundtrip Fares to the Caribbean, with prices starting at $232.20. (On the ShermansTravel landing page, click on "JetBlue.com" in the main paragraph to see these fares.) That's the lowest price we could find for select routes on JetBlue by at least $16. This price is valid on flights departing August 8 from Fort Lauderdale, FL, (FLL) with arrival in San Juan, Puerto Rico, (SJU) and return on August 21. This sale includes routes to Montego Bay, Jamaica (MBJ); Nassau, Bahamas (NAS); Oranjestad, Aruba (AUA); and more. Book this travel deal by March 29 for travel through August 31.