Puerto Rico Highway 26 (PR-26), called the Román Baldorioty de Castro Expressway, is the main highway to the Luis Muñoz Marín International Airport and is connected to PR-66. It was converted to a freeway to minimize the traffic in PR-3 and PR-17, to grant better access to the Airport. Several exits exist to provide access to PR-187, PR-37 and PR-22. PR-26 is 15.1 km (9.4 mi) long.