the hip way to go from manila to Duma or vice versa with heavy luggage is this. in Duma walk next door and ship your luggage cargo. it goes on the same plane its ridiculously cheaper. The down size is you have to go to the building next to the airport in manila to get your luggage. I figure you have to get in a cab anyway. Last time I went to the states I had a bag that weighed 48 kilos plus a very heavy banjo and a very big guitar it was 1100 pesos for everything.