The headline numbers
- Ferry plus self drive (family of 4, off-peak): around £380 total travel cost
- Eurostar direct to Marne-la-Vallée (family of 4, advance booking): around £640 total
- Eurostar via Paris with a Métro hop: around £540 if you can handle the change
When the ferry wins
If you have three or more children, want flexibility once in France, or plan day trips beyond the parks. The cost stays flat regardless of family size, which makes it a no-brainer for bigger families.
When Eurostar wins
If you have one or two children, hate long car days, and your hotel is on-site or in Val d'Europe. The direct service drops you a 10 minute walk from the park gates with no driving stress.
Our usual recommendation
Family of 4 or fewer: book Eurostar 9 months out and you will rarely beat it on time or stress. Family of 5+: the ferry plus self drive saves enough money to upgrade the hotel.