| Rhondda to Sabadell | 742.90 mi (1,195.59 km) |
| Rhondda to Sabinanigo | 644.62 mi (1,037.42 km) |
| Rhondda to Sagunto | 838.59 mi (1,349.59 km) |
| Rhondda to Salamanca | 743.59 mi (1,196.69 km) |
| Rhondda to Salobrena | 1,027.40 mi (1,653.43 km) |
| Rhondda to Salou | 759.25 mi (1,221.89 km) |
| Rhondda to Salt | 727.21 mi (1,170.33 km) |
| Rhondda to Salvatierra de Mino | 700.63 mi (1,127.55 km) |
| Rhondda to Sama | 584.16 mi (940.12 km) |
| Rhondda to San Adrian de Besos | 752.45 mi (1,210.96 km) |
| Rhondda to San Agustin de Guadalix | 755.79 mi (1,216.32 km) |
| Rhondda to San Andres de la Barca | 747.36 mi (1,202.76 km) |
| Rhondda to San Andres de Llevaneras | 747.68 mi (1,203.28 km) |
| Rhondda to San Andres del Rabanedo | 630.12 mi (1,014.08 km) |
| Rhondda to San Bartolome | 1,754.10 mi (2,822.95 km) |
