Not my own work but as you do not say which airport you are coming into all info C&P'd for ease:
1. TGV
(non refundable fares vary depending upon departure time from 15� to 30�)
Travel time 9-10 minutes, last departure about 9:55 p.m.
http://www.voyages-sncf.com/
depart: AEROPORT CDG 2 TGV (95) arrive: MARNE LA VALLEE CHESSY (77)
2. Bus (VEA)
http://www.vea.fr/uk/index.asp
Adults � 17�, children under 12 � 13�
Departures every 20 minutes from 8:55 a.m. until 8:05 p.m. except:
Until 8:25 p.m. on Monday & Thursday
Plus 10:25 p.m. on Friday
Plus 9:55 p.m. on Sunday
Travel time about 1 hour
3. RER (train/m�tro)
http://www.ratp.com/
RER Line B towards Chatelet-Les Halles; change to Line A for Marne-La Vallee/Disneyland
This is probably the cheapest option (about 14�) but it can take up to 2 hours.
4. Shuttle
http://www.paris-blue-airport-shuttle.fr/
Private shuttle from 1 to 8 people � 60� to 100�
Shared ride from 1 to 8 people � 45� to 12.50� per person
http://www.shuttle-inter.com/
Private shuttle from 1 to 3 people � 70�
Private shuttle 4 to 8 people � 75 to 110�
Travel time about 1 hour
Reliability varies
5. Taxi
http://www.ta