Question: What is the train route from Charles de Gaulle airport to Calais? I see that there is a train station inside the airport. Is there only one station or many? If there are many stations please let me know the station name and the train to board and the route.

I hope the train is the cheapest and best mode to travel from CDG to Calais, if there is any other please suggest.

Answer: 
[Rome2Rio says that you can get a Eurolines bus from Paris CDG to Calais.](http://www.rome2rio.com/s/Paris-CDG-Airport-CDG/Calais) The journey lasts approximately 5 hours and is significantly cheaper than the train. Below is a screenshot from Rome2Rio:

[![Rome2Rio bus from CDG to Calais](https://i.stack.imgur.com/MLbFo.png)](https://i.stack.imgur.com/MLbFo.png)

[Eurolines](http://booking.eurolines.fr/site/SelectDestinationSrv#) agrees with this. Buses run to Calais Centre Ville, Calais Ferry, and Calais-Cité-Europe. Below is a sample quote for CDG to Calais Centre:

[![Eurolines from CDG to Calais](https://i.stack.imgur.com/yYYoW.png)](https://i.stack.imgur.com/yYYoW.png)
The train station is located in Terminal 2 (between 2D and 2F).

Not sure if the train will be the cheapest way to go to Calais. The bus or a shared car might be cheaper (but also take more time).

For instance, with the bus, you can get to Lille from CDG for just 9€ :
<http://uk.ouibus.com>

Then from Lille to Calais, with the bus, train or shared car, it will be less than 30 €.

For the shared car, try this :
<https://www.blablacar.fr/>

Hope this helps! :)