There are flights to Cozumel from the nearby airstrip, speak to a tourist office in Playa del Carmen about chartering a plane.
The ADO bus terminal is on Av Juárez between Av 5 and 10. All buses depart from here. The following prices and times are for ADO buses (1st class, a/c, usually showing a video on longer journeys); Premier, also 1st class; Maya de Oro, supposed to be 1st class but quality of buses can be poor; OCC, good 1st-class service. To Cancún, frequent departures, 1½ hrs, US$3; 2nd-class services with Mayab, less frequent, US$2. To Cancún airport, Riviera, frequent between 0700 and 1915, 1 hr, US$6.50. To Chetumal, ADO, frequent departures, 4½ hrs, US$14.50; and many 2nd-class buses. To Chichén Itzá, 4 departures, 0610, 0730, 0800, 1150, 4 hrs, US$8.50-15.50. To Mérida, frequent departures, 5 hrs, US$20.50. To Mexico City, ADO, 1230, 1930, 2130, 24½ hrs, US$87. To San Cristóbal de las Casas, OCC, 1545, 1715, 2200, 16 hrs, US$46.50; and an ADO GL, 1900, US$55.50; and 3 TRF departures, US$30. To Tulum, frequent departures, 1 hr, US$3.50. To Valladolid, frequent, 3 hrs, US$8.50 (most buses going to Mérida stop at Valladolid. 2nd-class buses to Valladolid go via Tulum). To Xcaret, frequent departures, 15 mins, US$0.80. To Xel Há, frequent departures, 1 hr, US$3.50.
Avis, Av 20, between Calle 4 and 6, T984-803 0713; Budget, Hwy 307 southbound and Calle 34, T984-873 2772; Executive, Av 5a between Calle 10 and 12, T984-873 0477, Happy Rent a Car, Av 10a and Constituyentes, T984-873 1739; Hertz Rent-a-Car, Highway 307 and Calle 12, T984-873 2151; Rodar, Av 5a between Calle 2 and 4, T984-873 0088.
Ferries to Cozumel depart from the main dock, just off the plaza. There are 2 competing companies, right next to each other, journeys take 30 mins with both, hourly departures on the hour from 0500 until 2200, US$20 return, more to bring a car across. Buy ticket 1 hr before journey.
Cancún airport US$35. Beware of those who charge only US$5 as they are likely to charge an extra US$20 for luggage. Tours to Tulum and Xel-Há from kiosk by boat dock are around US$30; tours to Tulum, Xel-Há and Xcaret, 5-6 hrs, US$60; taxi to Xcaret US$6.65. Taxis congregate on the Av Juárez side of the square (Sindicato Lázaro Cárdenas del Río, T998-873 0032).