In order to get to Playa del Carmen you can fly to Cancun (CUN), which has the second airport with more flights in Mexico.
From Cancun you can take a bus to Playa del Carmen. There are direct buses from Cancun's Airport to Playa del Carmen, the Riviera Bus. You can also get by mini van (Colectivo) from the center of Cancun, they depart every 10 minutes. The ride takes about 45 minutes. Alternatively, you can rent a car.
You can also fly to Cozumel Airport, and take the ferry to Playa. It takes about 20 minutes.
♥ Visit Tagulandang Island ♥