| Boppard to Sabinanigo | 653.25 mi (1,051.30 km) |
| Boppard to Sagunto | 823.36 mi (1,325.07 km) |
| Boppard to Salamanca | 903.27 mi (1,453.67 km) |
| Boppard to Salobrena | 1,084.51 mi (1,745.35 km) |
| Boppard to Salou | 704.44 mi (1,133.69 km) |
| Boppard to Salt | 614.71 mi (989.28 km) |
| Boppard to Salvatierra de Mino | 950.64 mi (1,529.90 km) |
| Boppard to Sama | 788.02 mi (1,268.20 km) |
| Boppard to San Adrian de Besos | 660.37 mi (1,062.76 km) |
| Boppard to San Agustin de Guadalix | 852.87 mi (1,372.55 km) |
| Boppard to San Andres de la Barca | 663.86 mi (1,068.37 km) |
| Boppard to San Andres de Llevaneras | 646.28 mi (1,040.09 km) |
| Boppard to San Andres del Rabanedo | 817.35 mi (1,315.40 km) |
| Boppard to San Bartolome | 1,962.59 mi (3,158.49 km) |
| Boppard to San Baudilio de Llobregat | 669.15 mi (1,076.90 km) |
