Rhada I hope you know that Puerto Princessa is not exactly that near Coron! Busuanga is a separate Island from Palawan and is located at the northern most tip whereas PP is somewhere in the middle.
Take that plane trip its a fun ride in a small airplane
If your the adventurous kind you would love it there. The plane lands on a small dirt airstrip and when it comes to a halt and the engine stops you will feel like you were transported back in time. You hear nothing but the light blow of the wind. If you get lucky you may chance upon an eagle circling above the picturesque airport. The land trip to Coron town from the airport is very scenic as well. It reminds me of those english countrysides with rolling hills of green meadows and barbed wooden fences.
Just be sure you are not afraid of heights (like I am) as that small plane is a bit sensitive to airpockets and is not cabin pressurized.