| Caerfyrddin to Roeselare | 326.64 mi (525.68 km) |
| Caerfyrddin to Ronse | 350.19 mi (563.58 km) |
| Caerfyrddin to Rotselaar | 393.80 mi (633.77 km) |
| Caerfyrddin to Rumst | 379.39 mi (610.57 km) |
| Caerfyrddin to Saint-Ghislain | 365.38 mi (588.02 km) |
| Caerfyrddin to Saint-Nicolas | 433.94 mi (698.36 km) |
| Caerfyrddin to Saint-Vith | 466.06 mi (750.05 km) |
| Caerfyrddin to Scherpenheuvel | 404.07 mi (650.29 km) |
| Caerfyrddin to Schilde | 383.86 mi (617.76 km) |
| Caerfyrddin to Schoten | 380.82 mi (612.87 km) |
| Caerfyrddin to Seneffe | 381.74 mi (614.36 km) |
| Caerfyrddin to Seraing | 433.44 mi (697.56 km) |
| Caerfyrddin to Sint-Amandsberg | 351.45 mi (565.60 km) |
| Caerfyrddin to Sint-Andries | 325.38 mi (523.65 km) |
| Caerfyrddin to Sint-Genesius-Rode | 381.76 mi (614.38 km) |
