| | | km | | |
| | | | |
| | | 469.477 | Savenay | 18 |
| | | 469.760 | |
| | | | | | | | | | | 481.930 | Sablé–Montoir-de-Bretagne line | | | | | | | | 483.580 | Pontchâteau | 7 | | | | 483.811 | Pontchâteau tunnel (152m) | | | | 490.059 | Drefféac | 6 | | | | 494.209 | Saint-Gildas-des-Bois | 17 | | | | 498.628 | Sévérac | 21 | |
| | | 509.689 | |
| | | 511.354 | Redon | 12 |
|
| | | 565.755 | Vannes | 22 |
| | | 581.996 | Sainte-Anne-d'Auray | 34 |
| | | 584.946 | Auray | 37 |
| | | 585.758 | |
| | | 588.986 | |
|
| | | 619.447 | Lorient | 16 |
|
| | | | |
| | | 664.604 | Rosporden | 118 |
| | | 665.302 | |
| | | 672.050 | Saint-Yvi | 64 |
| | | 684.794 | Quimper | 6 |
| | | 685.603 | Quimper tunnel (310m) |
| | | 685.900 | |
| | | | | | | | | | | 694.876 | Plogonnec tunnel (231m) | | | | 702.562 | Quéménéven | 68 | | | | | | | | | 715.201 | Châteaulin | 53 | | | | | | | | | 721.814 | Pont-de-Buis | | | | 728.690 | Pont-de-Buis-lès-Quimerc'h | 70 | | | | 731.051 | Neiz-Vran tunnel (431m) | | | | 740.360 | Hanvec | 91 | | | | 750.580 | Daoulas | 54 | | | | 758.187 | Dirinon | 103 | |
| | | | |
| | | 603.559 | Landerneau | 30 |
| | | | |
| | | km | | |
| | | | | | |