The service, called Eurostar Snow, will run from London St Pancras International to the popular Tarentaise region of the French Alps, allowing skiers and snowboarders to travel to Moutiers, Aime-la-Plagne and Bourg-Saint-Maurice, where they will have easy access by bus or taxi to 16 major ski resorts, including Meribel, Courchevel, La Plagne, Les Arcs, Tignes and Val d'Isere.
Tickets will cost from £99 in standard class and £149 in 'standard premier'.
A change of train will be involved at Lille in both directions on the 500 mile journey however
Tickets have been on sale from August 31 and the service will run for eight weekends, with the first Eurostar Snow train departing from London on December 16.
Each traveller will have a luggage allowance of two suitcases, one piece of hand luggage and skis or a snowboard.
The alternative way of reaching the French Alps by train from London is to take a Eurostar to Paris, then cross the city to Gare de Lyon, and take a direct TGV from there.
More details on the Eurostar website here