How much is the RER from CDG to Paris?

Related questions

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3. Is there free WiFi at CDG?
4. Should you tip in French restaurants?
5. Is it safe to walk around Paris?
6. Is food free at airport lounges?
7. Does Paris Metro have WiFi?
8. What to do when you have an overnight layover?
9. Can you stay in the airport overnight?
10. What terminal does Delta use at CDG?

Tags

1. #fastest
2. #roughly
3. #central
4. #requiring
5. #transportation
6. #charles
7. #paris
8. #gaulle
9. #roissy
10. #train
11. #january
12. #airport
13. #minutes
14. #details
15. #suburban
16. #cheapest