Another exceptional deal from Europe to the Caribbean isles of Puerto Rico and U.S. Virgin Islands including next high season during European winter 2018/2019! This time based on promotion of SkyTeam partners Air France /KLM and Delta Air Lines you can book very cheap return flights to Puerto Rico (San Juan) or U.S. Virgin Islands (St. Thomas) already for €306 when deaprting from Brussels, Vienna, Zurich or Frankfurt. Note that fare does not include checked bag in base fare and has to be booked separately. (Otherwise fare is inclusive of all taxes and fees and in-flight meals.). Want to book very cheap flights in main tourist season do not miss this first minute sale!