You guys may also contact this reputable travel agency (
http://www.filipinotravel.com.ph/index.php) via telephone & have a confirmed Manila-Caticlan return ticket ready for pick up at the Int'l airport upon ur arrival, or delivered to the hotel. This agency is also based along the famous white beach in Boracay in case. I've only made 1 phone call & thereafter e-mail correspondences for following up & payment for our lovely trip this June. However, I was told by the SEAir check-in staff that we could get better fare price if we call their ticketing office directly, as compared to via travel agency.
Cathay Pacific & Philippines Airlines fly to Manila Int'l daily, but their arrival time doesn't coincide well with the departure time to Caticlan (allow 3hours transit time for check out & catch a cab to Domestic Airport for check in), so many stays a night at Manila. There are 2 domestic airports (excluding Clark which is at the suburbs) in Manila which is very, very near each other.
Have a lovely holiday! Must drink mango shake everyday!