From le Havre, book a train to Paris. You will arrive in Gare Saint-Lazare.
Get in the RER line E (you are at the end of the line, step in any train)
Step down at the next station: "Gare du Nord" and take the RER line B3 (the direction is "Aéroport ROISSY Charles de Gaulle". There are two stations at the end of the line: CDG1-3 for the terminals 1 and 3, CDG2 for the terminal 2.
The RER is a Paris suburban train service. It does not go to Le Havre. You can go from CdG to Gare du Nord on the RER, from Gare du Nord to Gare Saint-Lazare on the metro, and from Saint-Lazare to Le Havre by train. The SNCF website will help you with this.
about 25 minutes from the moment you get on the train '"RER B". There are two stations in Charles de Gaulle Airport, CDG 1 and 2. Check what it yours. Hours of service and details on link.
CDG airport is located at 5 Rue du Cercle, 95700 Roissy-en-France, France. It is located about 16 miles Northeast of Paris. CDG is France's largest airport spanning over 12.5 sq Miles of land.
The population of Cité du Havre is 775.
Funiculaire du Havre was created in 1890.
RER line B towards Paris, until you reach the station "Gare du Nord" At Gare du Nord, switch to RER line E towards "Haussmann Saint Lazare" (next station)
Gare du Nord was created in 1864.
Gare du Sud ended in 1991.
Gare du Palais was created in 1915.
Gare du Sud was created in 1892.
On the direct RER train, very quickly.
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