adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-NATIONAL_WORLD","nativepaywallcategory" : "NATIVE_PREM-NATIONAL_WORLD"};HAVANA — The United States and Cuba have struck a deal to allow as many as 110 regular airline flights a day, allowing a surge of American travel to Cuba that eventually could flood the island with hundreds of thousands more U.S. visitors a year, officials said on Thursday on the anniversary of detente between the Cold War foes.