JetBlue Airways via ShermansTravel discounts JetBlue Airways Roundtrip Fares to the Caribbean, with prices starting at $228.20. (On the ShermansTravel landing page, click on "JetBlue.com" in the main paragraph to see these fares.) That's $4 under our mention of such fares from March and the lowest price we could find for select routes today by at least $70. This price is valid on flights departing August 7 from Fort Lauderdale, FL, (FLL) with arrival in San Juan, Puerto Rico, (SJU) and return on August 9. This sale includes routes to Montego Bay, Jamaica (MBJ); Nassau, Bahamas (NAS); Oranjestad, Aruba (AUA); and more. Book this travel deal by May 31 for travel through August 31.