| Swansea to Sabadell | 4,623.95 mi (7,441.53 km) |
| Swansea to Sabinanigo | 4,480.70 mi (7,210.99 km) |
| Swansea to Sagunto | 4,585.38 mi (7,379.46 km) |
| Swansea to Salamanca | 4,294.84 mi (6,911.88 km) |
| Swansea to Salobrena | 4,536.40 mi (7,300.64 km) |
| Swansea to Salou | 4,597.86 mi (7,399.54 km) |
| Swansea to Salt | 4,638.08 mi (7,464.27 km) |
| Swansea to Salvatierra de Mino | 4,129.06 mi (6,645.08 km) |
| Swansea to Sama | 4,218.76 mi (6,789.44 km) |
| Swansea to San Adrian de Besos | 4,633.12 mi (7,456.28 km) |
| Swansea to San Agustin de Guadalix | 4,398.23 mi (7,078.26 km) |
| Swansea to San Andres de la Barca | 4,621.87 mi (7,438.18 km) |
| Swansea to San Andres de Llevaneras | 4,639.50 mi (7,466.56 km) |
| Swansea to San Andres del Rabanedo | 4,244.23 mi (6,830.43 km) |
| Swansea to San Bartolome | 4,247.57 mi (6,835.80 km) |
