Question for Philippine Pilots: At what altitude does an airplane fly from General Santos to Manila?

Question

or from Manila to General Santos? and at what speed? IAS?

Answer 1

It entirely depends upon the aircraft, anything with turbines will want to get up above flight level 300, KIAS of 250 knots or higher. If you want supersonic you'll have to head out over the ocean a bit.

Turboprop somewhere around 18k.