On weekdays, a limited number of trains continue from Payerne to Avenches.

It pairs with the R9 for half-hourly service between Palézieux and Payerne.

On weekdays, two trips per day operate north to Avenches.

With the December 2021 timetable change, the S8 began operating on Saturdays as well.

In addition, all RER Vaud lines were renamed as "R" and a number, instead of "S."[5]