| Llantrisant to Seysses | 596.96 mi (960.71 km) |
| Llantrisant to Sin-le-Noble | 293.80 mi (472.83 km) |
| Llantrisant to Six-Fours-les-Plages | 723.80 mi (1,164.85 km) |
| Llantrisant to Soissons | 330.11 mi (531.26 km) |
| Llantrisant to Soisy-sous-Montmorency | 306.39 mi (493.09 km) |
| Llantrisant to Sollies-Pont | 724.83 mi (1,166.51 km) |
| Llantrisant to Somain | 300.91 mi (484.27 km) |
| Llantrisant to Sorgues | 645.36 mi (1,038.60 km) |
| Llantrisant to Sotteville-les-Rouen | 245.41 mi (394.95 km) |
| Llantrisant to Soyaux | 439.11 mi (706.67 km) |
| Llantrisant to Stains | 310.99 mi (500.49 km) |
| Llantrisant to Stiring-Wendel | 481.56 mi (775.00 km) |
| Llantrisant to Strasbourg | 533.25 mi (858.19 km) |
| Llantrisant to Sucy-en-Brie | 323.65 mi (520.87 km) |
| Llantrisant to Suresnes | 308.57 mi (496.59 km) |
