I'm a local and i can tell you i just hate the taxis. I take a taxi only in great need. I recommend you to do the same. Not that all taxi drivers are bad, but it's the most probable tourist trap in the city.
Unique Suggestions: If you think that a taxi driver charged you more than he should, write down his plates' number and try this number : 171. It's the tourist police.
Fun Alternatives: Take a good city map and the impressively upgraded transportation system of the city can subsitute the taxis perfectly.
Some taxis around the Acropolis charge high rates to take you to outlying areas, like your seaside hotel. They are charging you for their return trip. This is not unusal for other parts of the world. But ask the price before you get in the taxi, or you could be suprised by the price. Don't be afraid to make them an offer if their price is too high.
Once at the airport, If you take a taxi to your hotel please note that cabbies have been known to take advantage of unsuspecting tourists and overcharge them! (Hard to believe huh) :)
However you can minimize the damage by doing the following:
Make sure that the cab driver turns his meter on as soon as you get in! Do not make 'a deal' with the taxi driver. The cab fare is not negotiable and any agreement you might make with him is going to be to your disadvantage.And he will try hard to give you a 'good' deal!
Look at the meter and make sure that it is running at the normal speed. You can determine this by looking for the number '1' or the number '2' in the meter's face. If you see the number 1 then it is correct. If you see the number 2 then it is running at double the normal rate. (The double rate is only applied when you use a cab after midnight or if you take the cab for a trip outside of Athens city limits).
If a diagreement should take place, insist on your right to call in the tourist police! That usually resolves the problem!
Queue for Taxis at the Airport - If a friendly Greek tries to usher you straight to the front of a queue, politely decline - using this service is known as 'Limousine Service', and a cab to the City Centre will cost you around $60US, rather than the $10us a normal cab will charge.
Well, you should be very careful with taxi drivers, they will try to steal you if you look like a lost foreigner.
Arrange prices before to start a trip and don t forget that taxi is very cheap, so a regular trip of 15 mins can t cost you more than 4 or 5 dollars (you convert it to greek money).
TAXIS.....they like to charge you special tourist prices.expect to pay extra for bags and airport and train dropoffs and pickups.if in doubt ask a local what you should pay.I think just about everyone in Greece smokes cigarettes so expect smoke all around you too
Never trust a taxi driver about his fair.Just see what the taximeter is writing.Dont take an old train.
Book your tickets for the islands two days before.If you rent a car beware of Greeks when it comes to driving they are all Shumahers.
Avoid using taxis in Athens! Only few of them will ask the normal fee, so ask about the prices before you get into a taxi and make sure the driver's estimate is near the price you were told is reasonable!
In Athens, even taxi-meters are unreliable...
There are of course exceptions to this rule, I have encountered 2 or 3 honest, polite drivers in Athens during the past 15 years...