Marseille to Strasbourg by train

Book early and save: Yes

Online bookings usually open: up to 6 months ahead of the travel date.

When booking 2nd class tickets only one type of ticket will be available per departure, discounted 'Prems' tickets or 'Seconde' tickets; though the price of Seconde tickets are also typically cheaper when they are first placed on sale.
When booking 1st class tickets there will be a choice of Premiere tickets and Business Premiere tickets.

The two key T&Cs of booking Prems, Seconde, or Premiere tickets are:

1. Up until two days prior to departure, these types of tickets can be refunded for no additional charge (big tick), but a €15 fee will be payable for making a refund in the two days prior to departure.
2. It's also possible to exchange tickets to an alternative departure on the same journey, but you will have to pay any difference in price between the cost you paid and the cost at the time of the exchange.

Though if you book Business Premiere tickets, the key T&Cs are that tickets can be exchanged and refunded free of charge up to 30 minutes after departure, so if you get to the station just too late to miss the train you were originally booked on to, you won't lose out financially.

Seats will automatically be assigned when booking tickets for this journey, but rail pass users will need to be pay a reservation fee prior to boarding these TGV trains.

Expect to pay more for this journey between the beginning of June and mid-September, particularly if you will be travelling on a Friday or Saturday, as the most heavily discounted tickets inevitably sell out faster at times of particularly high demand.