Opening of SNCF summer sales tomorrow morning: to the sea or the mountains, three journeys to book for the holidays. Tomorrow from 6 a.m., TGV inOui and Intercités ticket sales are open for sale until September 11, and Ouigo tickets until December 14.
To be guaranteed to find seats at the best price, it is better to book without delay. It is also better to anticipate as much as possible to simply find availability, as some trains can be full in a few hours.