The FIL featured teams located in the largest metropolitan centers in Florida and Cuba.
Its longest serving clubs were located in Miami (usually nicknamed the Sun Sox), Tampa (named the Smokers, after the city's large cigar business) and West Palm Beach (called the Indians, though the team was never affiliated with the Cleveland Indians of Major League Baseball).
They won five consecutive regular season titles from 1946–1950 and dominated in attendance as well, drawing over 200,000 fans from 1947–1949.
The Cubanos furnished many Cuban baseball players to the parent Senators, including pitchers Sandalio "Sandy" Consuegra, Conrado Marrero and Miguel "Mike" Fornieles, and outfielder Carlos Paula, who in 1954 broke the color line for the Senators as their first player of African descent.
In 1954, however, Havana left the FIL to become a Class AAA International League franchise, the Sugar Kings.