| Idanha-a-Nova to Schiedam | 997.38 mi (1,605.13 km) |
| Idanha-a-Nova to Schijndel | 1,009.96 mi (1,625.38 km) |
| Idanha-a-Nova to Schinnen | 989.73 mi (1,592.82 km) |
| Idanha-a-Nova to Schoonhoven | 1,011.21 mi (1,627.39 km) |
| Idanha-a-Nova to Simpelveld | 987.11 mi (1,588.60 km) |
| Idanha-a-Nova to Sint Anthonis | 1,023.37 mi (1,646.95 km) |
| Idanha-a-Nova to Sint Willebrord | 982.89 mi (1,581.81 km) |
| Idanha-a-Nova to Sint-Michielsgestel | 1,009.21 mi (1,624.16 km) |
| Idanha-a-Nova to Sint-Oedenrode | 1,008.02 mi (1,622.26 km) |
| Idanha-a-Nova to Sittard | 991.68 mi (1,595.96 km) |
| Idanha-a-Nova to Sliedrecht | 1,001.85 mi (1,612.31 km) |
| Idanha-a-Nova to Slochteren | 1,130.91 mi (1,820.02 km) |
| Idanha-a-Nova to Sluis | 937.52 mi (1,508.79 km) |
| Idanha-a-Nova to Sneek | 1,090.71 mi (1,755.32 km) |
| Idanha-a-Nova to Soest | 1,035.83 mi (1,667.00 km) |
