Eurostar extends booking period - Telegraph The changes affect bookings to the firm's three key European hubs - Paris, Brussels and Lille. Travel to Avignon, Disneyland Paris and several skiing destinations - such as Aigle, Martigny and Vallorbe in the Swiss Alps, can already be secured up to nine months in advance. Other destinations - such as Grenoble, Amsterdam and Aachen in Germany can only be booked three months ahead of departure. We found flights to be a cheaper way to visit Paris when booked just two months in advance, but with six month's notice Eurostar becomes the best option. The rail operator also compares favourably to airlines for trips to Brussels. Farther afield, however, air travel becomes much cheaper. Eurostar's one-stop service to Amsterdam, for example, costs £239, compared with £137 with easyJet. The cost of rail fares to the Dutch city could come down in a few years, however, when Eurostar launches its first non-stop service there. Planes v trains Cheapest fare for two adults, travelling on Thursday, February 6, and returning on Sunday, February 9 Rail Air Paris Eurostar (2 hours 16 mins) £228 easyJet (1 hour 20 mins, from Luton) £125 Brussels Eurostar (2 hours 7 mins) £138 BA (2 hours 15 mins, from Heathrow) £188 Lille Eurostar (1 hour 28 mins) £138 No direct flights Amsterdam Eurostar (4 hours 44 mins; one change) £239 easyJet (1 hour, from Gatwick) £137 Lyon Eurostar (5 hours 55 mins; one change) £278 easyJet (1 hour 40 mins) £114 Grenoble Eurostar (6 hours 42 mins; one change) £318 easyJet (1 hour 35 mins) £116 Cheapest fare for two adults, travelling on Thursday, June 5, and returning on Sunday, June 8 Eurostar £138 easyJet (1 hour 15 mins, from Gatwick) £139 easyJet (1 hour 10 mins, from Gatwick) £145 Journeys to Amsterdam, Lyon and Grenoble cannot be booked more than three months in advance