| Idstein to Roeselare | 231.40 mi (372.40 km) |
| Idstein to Ronse | 208.68 mi (335.84 km) |
| Idstein to Rotselaar | 164.25 mi (264.33 km) |
| Idstein to Rumst | 179.16 mi (288.34 km) |
| Idstein to Saint-Ghislain | 197.19 mi (317.35 km) |
| Idstein to Saint-Nicolas | 123.96 mi (199.50 km) |
| Idstein to Saint-Vith | 94.68 mi (152.37 km) |
| Idstein to Scherpenheuvel | 154.66 mi (248.91 km) |
| Idstein to Schilde | 176.58 mi (284.18 km) |
| Idstein to Schoten | 179.69 mi (289.18 km) |
| Idstein to Seneffe | 178.61 mi (287.44 km) |
| Idstein to Seraing | 124.71 mi (200.70 km) |
| Idstein to Sint-Amandsberg | 206.44 mi (332.23 km) |
| Idstein to Sint-Andries | 232.74 mi (374.55 km) |
| Idstein to Sint-Genesius-Rode | 176.42 mi (283.92 km) |
