From the Airports to Paris, Paris

By air most visitors come in through De Gaulle or Orly airports, from which it is a relative long drive to the citycentre. Metro or taxi can be used (so cheap and expensive) to close the distance, but some bigger hotels have buspendelservices that will take care of that.
By train you will enter Paris on one of the 'Gares' that connect perfect on the metrosystem.
Coming by car it's better to park somewhere in the suburbs and then get on the metro, then to drive into town, seek a parkingspot and then be amazed about the parkingtarifs (in P-houses).
Use the metro, or the metro or - if you realy want to get effeiciently from A to be - you can choose the metro. Truely the Paris Metro brings you in a few minutes anywhere you want to be in this city. Taxis are expensive and with busses it's rather complicated to find how how everything works. Driving a car within (and on) the periferique can be called suicidle and parking is impossible (except for the Parisians themself as they even manage to park a Buick in a place just big enough for a VW-beetle).

From the airport (Charles de Gaulle), we took the shuttle to the train.
The subway in Paris is everywhere you want to go. Definitely take advantage of it. While we were there, we noticed a lot of folks roller-blading - even 40-something women in suits use their blades to commute!

I got in Paris from Barcelona by plane. From the airport to the city u have two choices, the airfrance bus which will let u at arc d´triunf (I guess), and the RER which will take u to the metro station. I took the RER and when I got at the final station I had the feeling that I wasn´t at a safe place. To get worse all the places where I could buy a metro ticket was closed so after trying to find an open one for some minutes we decided to go without paying.
Inside the city u can either take the bus or the metro. Whenever I could I took the bus because although the metro takes u everywhere, is kinda crowed and dirty. And taking the bus u can see the city.

By plane – From the airports you have excellent connection with the city by RER. It cost 7,60 EURO (march 2002 – from/to Charles de Gaulle Airport), taxi cost about 40-50 EURO, depends on traffic (airport – downtown). By train – all railways stations are connected to the metro system - or by couch.
The best way to see the city is to walk. In case you are tired or you want to reach any place fast choose the metro – underground. 16 lines (14 numbers plus 3 and 7bis) take you everywhere. The best solution is to buy Carte Orange and one-week or longer ticket. Or just one day ticket valid in the metro, buses, RER and funiculaire. It costs 5 EURO.

I came in from Charles de Gaulle Airport also known as Roisey Airport. From here you can take a cab, the RoiseyBus or the RER train to Paris. I'd suggest the RER, since it's the cheapest. However a cab would be the best if you don't want to haul your lugguge through the turnstiles. The RoiseyBus isn't worth the extra money since it just brings you to Opera, the RER is just as good for less money.
Definately use the metro if you don't want to walk. Paris has a comprehensive subway system that covers the entire city and only cost 1.3 Euros for a ticket. You're actually better off buying a carnet (10 tickets) for only 8.7 Euros.
The RER is good for trips just outside Paris, beyond that use Translien for trips to the Illes de France.

We arrived at CDG, and got lost while finding immigration, its very large but duty free isnt great, the RER train is the best way to get into the city in the shortest possible time, its only 7.6 Euros per person and this includes a metro fare from Gare du Nord/Chatelet to any other station.
The metro - carnets are a must buy - only 9.3 Euros for 10 and the Paris metro is fantastic once you understand it. For the first few trips we made total fools of ourselves staring at the metro maps for ages and asking for help until the trains, but by the end we were pros, and actually giving directions!!
The bus is equally good I think, but we used mainly metro.

Fly into Charles De Gaulle airport. Take the RER into Paris. Its about 40 francs. A cab is about 250 francs.
RER & metro are the easiest modes of transportation. For some reason, in Paris, you need your ticket stub to get out of the metro. Cabs, like anywhere, are expensive.

Think about RER B to Paris from CDG. It's CHEAPER and FASTER the a CAB!! But you will be on a subway so if you have more then ONE bag PER PERSON, stick to a cab or bus.. But if like me you travel LIGHT, hit the RER B to Paris.. It will cost about 80ff but it is CHEAP and FAST!! Take the one marked 'TGV' it is the express train and only makes a FEW stops between airport and Paris. From this subway system 'METRO' you can go ANYPLACE in Paris from the airport for only 80FF!!!
METRO!!!! NOTHING beats it!!! The French subway system is called the METRO. It's GREAT and CLEAN!!! You can get ANYPLACE and FAST with ONE TICKET!! (6-8 FF)..Just don;t go up to a street until your where you need to be!!! Follow the signs to where you need to be.. the system is simple and maps are ALL OVER the place in the METRO also in EACH car. The Buses are good also but can get you a BIT turned around if your not watching out.. Also they take FOREVER sometimes as traffic in Paris can be REALLY bad.