| Boulogne-sur-Mer to Sopron | 706.19 mi (1,136.50 km) |
| Boulogne-sur-Mer to Szarvas | 899.25 mi (1,447.20 km) |
| Boulogne-sur-Mer to Szazhalombatta | 816.71 mi (1,314.37 km) |
| Boulogne-sur-Mer to Szeged | 900.08 mi (1,448.54 km) |
| Boulogne-sur-Mer to Szeghalom | 921.38 mi (1,482.82 km) |
| Boulogne-sur-Mer to Szekesfehervar | 797.92 mi (1,284.13 km) |
| Boulogne-sur-Mer to Szekszard | 835.66 mi (1,344.87 km) |
| Boulogne-sur-Mer to Szentendre | 812.81 mi (1,308.09 km) |
| Boulogne-sur-Mer to Szentes | 892.92 mi (1,437.01 km) |
| Boulogne-sur-Mer to Szentgotthard | 714.63 mi (1,150.09 km) |
| Boulogne-sur-Mer to Szigethalom | 820.36 mi (1,320.24 km) |
| Boulogne-sur-Mer to Szigetszentmiklos | 821.29 mi (1,321.73 km) |
| Boulogne-sur-Mer to Szigetvar | 807.76 mi (1,299.97 km) |
| Boulogne-sur-Mer to Szolnok | 875.45 mi (1,408.91 km) |
| Boulogne-sur-Mer to Szombathely | 720.48 mi (1,159.50 km) |
