| Middlesex to Sesena | 3,621.08 mi (5,827.57 km) |
| Middlesex to Sestao | 3,563.02 mi (5,734.13 km) |
| Middlesex to Sevilla | 3,595.54 mi (5,786.47 km) |
| Middlesex to Sevilla La Nueva | 3,598.16 mi (5,790.68 km) |
| Middlesex to Silla | 3,800.54 mi (6,116.38 km) |
| Middlesex to Silleda | 3,334.41 mi (5,366.21 km) |
| Middlesex to Sitges | 3,846.43 mi (6,190.23 km) |
| Middlesex to Socuellamos | 3,688.61 mi (5,936.24 km) |
| Middlesex to Soller | 3,934.74 mi (6,332.35 km) |
| Middlesex to Solsona | 3,809.84 mi (6,131.34 km) |
| Middlesex to Son Servera | 3,970.44 mi (6,389.81 km) |
| Middlesex to Sonseca | 3,620.89 mi (5,827.26 km) |
| Middlesex to Sopelana | 3,562.33 mi (5,733.01 km) |
| Middlesex to Soria | 3,631.21 mi (5,843.86 km) |
| Middlesex to Suances | 3,511.40 mi (5,651.05 km) |
