| South Portland to Matulji | 3,965.70 mi (6,382.18 km) |
| South Portland to Metkovic | 4,190.96 mi (6,744.70 km) |
| South Portland to Nedelisce | 4,013.91 mi (6,459.77 km) |
| South Portland to Nova Gradiska | 4,096.38 mi (6,592.49 km) |
| South Portland to Novi Marof | 4,019.74 mi (6,469.15 km) |
| South Portland to Ogulin | 4,006.94 mi (6,448.55 km) |
| South Portland to Opatija | 3,966.20 mi (6,382.99 km) |
| South Portland to Osijek | 4,138.25 mi (6,659.86 km) |
| South Portland to Otocac | 4,021.86 mi (6,472.56 km) |
| South Portland to Pazin | 3,954.41 mi (6,364.01 km) |
| South Portland to Petrinja | 4,044.03 mi (6,508.23 km) |
| South Portland to Popovaca | 4,053.49 mi (6,523.47 km) |
| South Portland to Pozega | 4,105.14 mi (6,606.58 km) |
| South Portland to Pula | 3,963.84 mi (6,379.18 km) |
| South Portland to Rijeka | 3,972.28 mi (6,392.77 km) |
