| Middlesex to Snodland | 3,514.81 mi (5,656.53 km) |
| Middlesex to Soham | 3,488.20 mi (5,613.72 km) |
| Middlesex to Solihull | 3,401.48 mi (5,474.16 km) |
| Middlesex to Sompting | 3,493.69 mi (5,622.55 km) |
| Middlesex to South Hayling | 3,468.27 mi (5,581.65 km) |
| Middlesex to South Normanton | 3,405.23 mi (5,480.19 km) |
| Middlesex to South Ockendon | 3,504.34 mi (5,639.69 km) |
| Middlesex to South Shields | 3,366.71 mi (5,418.19 km) |
| Middlesex to Southall | 3,477.07 mi (5,595.81 km) |
| Middlesex to Southampton | 3,448.08 mi (5,549.16 km) |
| Middlesex to Southborough | 3,511.17 mi (5,650.68 km) |
| Middlesex to Southbourne | 3,435.63 mi (5,529.11 km) |
| Middlesex to Southend | 3,520.54 mi (5,665.76 km) |
| Middlesex to Southgate | 3,484.72 mi (5,608.11 km) |
| Middlesex to Southport | 3,329.18 mi (5,357.80 km) |
