| South Portland to Santa Venerina | 4,292.56 mi (6,908.21 km) |
| South Portland to Santeramo in Colle | 4,240.91 mi (6,825.09 km) |
| South Portland to Santo Stefano di Magra | 3,821.89 mi (6,150.75 km) |
| South Portland to Santo Stino di Livenza | 3,884.81 mi (6,252.01 km) |
| South Portland to Sarezzo | 3,783.49 mi (6,088.94 km) |
| South Portland to Sarno | 4,147.18 mi (6,674.24 km) |
| South Portland to Saronno | 3,735.07 mi (6,011.02 km) |
| South Portland to Sarzana | 3,825.51 mi (6,156.56 km) |
| South Portland to Sassari | 3,883.11 mi (6,249.26 km) |
| South Portland to Sasso Marconi | 3,870.81 mi (6,229.47 km) |
| South Portland to Sassuolo | 3,845.75 mi (6,189.14 km) |
| South Portland to Sava | 4,291.13 mi (6,905.91 km) |
| South Portland to Saviano | 4,139.00 mi (6,661.08 km) |
| South Portland to Savigliano | 3,707.14 mi (5,966.07 km) |
| South Portland to Savignano sul Panaro | 3,858.68 mi (6,209.94 km) |
