| South Portland to San Dona di Piave | 3,883.44 mi (6,249.79 km) |
| South Portland to San Donato Milanese | 3,751.75 mi (6,037.85 km) |
| South Portland to San Felice Circeo | 4,065.01 mi (6,542.01 km) |
| South Portland to San Felice sul Panaro | 3,850.94 mi (6,197.49 km) |
| South Portland to San Ferdinando di Puglia | 4,191.31 mi (6,745.26 km) |
| South Portland to San Gavino Monreale | 3,936.24 mi (6,334.76 km) |
| South Portland to San Gennaro Vesuviano | 4,141.63 mi (6,665.31 km) |
| South Portland to San Giorgio a Cremano | 4,134.20 mi (6,653.35 km) |
| South Portland to San Giorgio del Sannio | 4,147.74 mi (6,675.14 km) |
| South Portland to San Giorgio di Piano | 3,867.78 mi (6,224.59 km) |
| South Portland to San Giorgio Ionico | 4,280.55 mi (6,888.88 km) |
| South Portland to San Giovanni in Fiore | 4,298.73 mi (6,918.14 km) |
| South Portland to San Giovanni in Marignano | 3,949.42 mi (6,355.98 km) |
| South Portland to San Giovanni in Persiceto | 3,859.67 mi (6,211.54 km) |
| South Portland to San Giovanni la Punta | 4,295.07 mi (6,912.24 km) |
