Food wastes from PAL flights are collected and fermented for use as feed for worm culture and compost, the airline said in a statement.
"Philippine Airlines (PAL) assures that pork meat dishes loaded and served in-flight are free of African Swine Fever. Food wastes are not being used as swine swill feed," PAL said in a statement.
The Department of Agriculture earlier confirmed the entry of ASF in select areas, prompting the culling of thousands of the country's hog inventory.
Swill feeding, or the use of food wastes from airlines, sea vessels, hotels, restaurants and public markets as feed, is one of the potential causes for the entry and spread of the disease, Bureau of Animal Industry head Ronnie Domingo earlier said.
The disease that causes high fever, loss of appetite and hemorrhage in pigs, threatens the country's 12 million hog population estimated to be worth P268 billion.