Are you booking your accommodation and flights separately? You can pre-book your transfer to and from the airport in Gran Canaria.
Transfers Gran Canaria from the airport by taxi
The cost for transfer by taxi to the airport or from the airport to the southern touristic area is about 45 euros each way, ofcourse depending on the location of your accommodation. There are always taxis waiting at the airport.
More info: www.socomtaxi.com
Transfers from Gran Canaria airport by bus
At the following websites you can find the companies that organize transfers from the airport. Please note that the price is per person. There are options for private transfer as well as group transfers or a shuttle bus.
Transfers Gran Canaria airport by bus (public transportation)
For the bus to Playa del Inglès and Maspalomas, take Bus 66 to Faro de Maspalomas (every hour).
Rent a car
This might be the easiest way to transfer during your vacation. Find the cheapest car to rent and pick it up at the airport. Compare rental cars and prices at holidaycars.com