| South Portland to Snodland | 3,215.16 mi (5,174.29 km) |
| South Portland to Soham | 3,187.82 mi (5,130.30 km) |
| South Portland to Solihull | 3,101.34 mi (4,991.12 km) |
| South Portland to Sompting | 3,194.62 mi (5,141.24 km) |
| South Portland to South Hayling | 3,169.38 mi (5,100.62 km) |
| South Portland to South Normanton | 3,104.55 mi (4,996.29 km) |
| South Portland to South Ockendon | 3,204.56 mi (5,157.24 km) |
| South Portland to South Shields | 3,065.12 mi (4,932.83 km) |
| South Portland to Southall | 3,177.42 mi (5,113.56 km) |
| South Portland to Southampton | 3,149.16 mi (5,068.09 km) |
| South Portland to Southborough | 3,211.69 mi (5,168.72 km) |
| South Portland to Southbourne | 3,136.97 mi (5,048.46 km) |
| South Portland to Southend | 3,220.67 mi (5,183.16 km) |
| South Portland to Southgate | 3,184.92 mi (5,125.64 km) |
| South Portland to Southport | 3,028.34 mi (4,873.65 km) |
