A new set of travelcards, covering three- and six-month periods, are due to be made available to commuters in Athens.
Until now only weekly, monthly and annual travelcards had been on offer.
Deputy Transport Minister Michalis Papadopoulos signed a decision on Wednesday that will see the new cards, which will cost between 58 and 248 euros, come into use.
Three-month tickets for use on buses, trolley buses and trams will cost 58 euros.
Six-month travelcards will be 110 euros.
Currently, monthly travelcards for these modes of public transport cost 20 euros, while annual ones reach 200.
Three-month travelcards for use on the entire public transport network (including electric railway and metro) will cost 129 euros.
The six-month ones will be 248 euros.
At the moment monthly tickets for use on the whole network cost 45 euros.
The annual card is 450 euros.