In 1973, ten trains ran each way. Two trains ran the whole length of the line, departing at 5.50 and 7.39am from Bourg. They covered the 65 km in 1h 40, and average of 39 km/h including stops. Five trains only ran from Bourg to la Cluse (51 minutes, 41.5 km/h). Three trains ran from la Clause to Bellegarde in 42 minutes. The last train terminated in la Cluse at 23.25. There were no night trains (although up till the mid-1960s, a night service ran from Paris-Gare de Lyon to Bellegarde).