I have just travelled to the otogar in Antalya and took the airport bus
direct to the airport. The service is now the 600 service, red bus departing from right hand side of the otogar when you get off the bus from Fethiye. The service took an hour and cost 1.70 ytl. The bus stops at the Domestic Terminal and from there it is a short walk to Terminal 1. It also stops at Terminal 2. The bus is designed to take luggage and although the bus is very busy, overall it is a great service.