There are no direct flights from Guangzhou to Tagum. One possible route is to take a flight from Guangzhou to Manila, which is the capital of the Philippines, and then take a domestic connecting flight to Davao City, which is the nearest airport to Tagum.
Several airlines, including China Southern Airlines, Philippine Airlines, and Cebu Pacific, operate flights between Guangzhou and Manila. From Manila, Philippine Airlines and Cebu Pacific offer regular flights to Davao City.
The total travel time may vary depending on the layover and flight schedules. It is recommended to check with the airlines for the most updated information on flight schedules and travel requirements.