American Eagle is boosting its flight schedule to Caribbean destinations from its San Juan hub, beginning in December. The new flight plans include three additional daily flights to St. Thomas; one more daily flight to St. Croix; one additional daily flight to Antigua; and one additional flight to Anguilla, four days per week. All the above flights will begin Dec. 14. American Eagle will also begin one more flight to Dominica, three days a week, from Nov. 16 to Dec. 1, and from Dec. 14 to Jan. 31.