Caribbean Community (CARICOM) leaders meeting here agreed Thursday to the plan, which will help movement by more than 50,000 visitors expected to flock into the region next year for the global sport showcase.
All nine World Cup host nations and Dominica will be treated as a single entity from January 15 to May 15 of next year.
The deal is part of an unprecedented regional security plan incorporating the US advanced passenger information system.
Visitors will be pre-cleared and information will be shared among a pool of more than 400 police and military personnel.
"It is a framework that gives us comfort that we can therefore extend to all persons travelling in these 10 countries during this period of time... a level of freedom of movement that has not existed," Barbados deputy prime minister Mia Mottley said.