From Manila: Travel time will be approx. 45 minutes on riding an airplane and 16 hours by boat. If you travel via an airplane; you can choose 2 airline companies: Philippine Airlines (PAL) and Cebu Pacific Air which both have daily schedule flights from Roxas-Manila and vice versa.
From Iloilo City: Travel time is only 2 hours on riding a bus or private car.
FYI: Only 1 passenger ship operates in Culasi Port, Roxas City, in courtesy of Moreta Shipping Lines and several ferry boats that travel from Romblon and Masbate.