| South Portland to Stone | 3,076.58 mi (4,951.27 km) |
| South Portland to Stonehaven | 3,003.28 mi (4,833.31 km) |
| South Portland to Stourbridge | 3,085.55 mi (4,965.71 km) |
| South Portland to Stowmarket | 3,217.60 mi (5,178.23 km) |
| South Portland to Stranraer | 2,928.14 mi (4,712.39 km) |
| South Portland to Stratford | 3,191.97 mi (5,136.99 km) |
| South Portland to Stratford-upon-Avon | 3,108.80 mi (5,003.13 km) |
| South Portland to Stratton Saint Margaret | 3,119.43 mi (5,020.24 km) |
| South Portland to Streatham | 3,189.67 mi (5,133.28 km) |
| South Portland to Street | 3,089.33 mi (4,971.80 km) |
| South Portland to Streetly | 3,093.72 mi (4,978.86 km) |
| South Portland to Stretford | 3,059.64 mi (4,924.01 km) |
| South Portland to Strood | 3,214.91 mi (5,173.91 km) |
| South Portland to Stroud | 3,097.60 mi (4,985.10 km) |
| South Portland to Sudbury | 3,178.84 mi (5,115.84 km) |
