| South Portland to Buhusi | 4,406.54 mi (7,091.64 km) |
| South Portland to Bumbesti-Jiu | 4,340.55 mi (6,985.43 km) |
| South Portland to Busteni | 4,415.58 mi (7,106.19 km) |
| South Portland to Buzau | 4,476.14 mi (7,203.65 km) |
| South Portland to Cajvana | 4,338.22 mi (6,981.69 km) |
| South Portland to Calafat | 4,371.91 mi (7,035.91 km) |
| South Portland to Calan | 4,303.47 mi (6,925.76 km) |
| South Portland to Calarasi | 4,536.37 mi (7,300.58 km) |
| South Portland to Campia Turzii | 4,305.03 mi (6,928.27 km) |
| South Portland to Campina | 4,435.14 mi (7,137.66 km) |
| South Portland to Campulung | 4,402.37 mi (7,084.94 km) |
| South Portland to Campulung Moldovenesc | 4,329.49 mi (6,967.64 km) |
| South Portland to Caracal | 4,422.34 mi (7,117.07 km) |
| South Portland to Caransebes | 4,284.88 mi (6,895.86 km) |
| South Portland to Carei | 4,205.72 mi (6,768.45 km) |
