Eurostar is giving passengers a longer lead-in time to book their summer rail travel following customer feedback.
The booking time has been extended from four months to six months to bring the train operator more in line with competing airlines.
From today, tickets are now on sale for travel to Paris, Brussels and Lille up to June 7.
By March 4 the remainder of the summer travel period, up to August 31 , will be available to book.
Commercial director Nick Mercer said: "Our customers tell us they prefer the flexibility to book their summer trips further in advance as they want to compare our prices against those of the airlines."
Services to Disneyland Paris and Avignon and ski services to the French and Swiss Alps will continue to have a sales period of up to nine months in advance of the travel date.
