In the case of traveling to Paris from continental Europe or Britain, access by train is an excellent alternative to flying.
Paris has six main stations serving both domestic and international destinations:
The Gare du Nord (18 rue de Dunkerque 75010 Paris) is the gateway to London (Eurostar) and Northern France (Lille) and Europe (Netherlands, Belgium).
The Gare de l’Est (place du 11 novembre 1918, 75010 Paris) includes trains from and for eastern France (Alsace, Strasbourg), Germany, Luxembourg, and Central Europe Austria.
The Gare de Lyon (20 bd Diderot, 75012 Paris) serves the South East of France (Lyon, Aix en Provence, Marseille) and Côte d’Azur (Nice, Cannes, Saint Tropez) and Geneva and Italy.
The Gare d’Austerlitz (55 quai d’Austerlitz, 75005 Paris) serves the South West of France (Perigord, Toulouse) and the Loire Valley and Spain.
The Gare Saint Lazare (13 Rue d’Amsterdam 75009 Paris) gives access to Normandy and England (access ferry).
La Gare Montparnasse (17 bd de Vaugirard, 75015 Paris) can serve the west of France (Bordeaux, Nantes) and the Atlantic coast..
Many buses and subways operate each station.
For more information, please visit the SNCF website : http://www.voyages-sncf.com / (english) https://uk.voyages-sncf.com/en/#/