| South Portland to Campodarsego | 3,860.84 mi (6,213.42 km) |
| South Portland to Campogalliano | 3,843.95 mi (6,186.24 km) |
| South Portland to Campolongo Maggiore | 3,872.21 mi (6,231.71 km) |
| South Portland to Camponogara | 3,871.17 mi (6,230.05 km) |
| South Portland to Camposampiero | 3,859.24 mi (6,210.84 km) |
| South Portland to Canegrate | 3,732.61 mi (6,007.05 km) |
| South Portland to Canelli | 3,733.23 mi (6,008.05 km) |
| South Portland to Canicatti | 4,247.64 mi (6,835.91 km) |
| South Portland to Canosa di Puglia | 4,194.53 mi (6,750.45 km) |
| South Portland to Cantu | 3,735.60 mi (6,011.87 km) |
| South Portland to Caorle | 3,897.80 mi (6,272.90 km) |
| South Portland to Capaci | 4,188.49 mi (6,740.72 km) |
| South Portland to Capannori | 3,860.74 mi (6,213.26 km) |
| South Portland to Capena | 4,007.26 mi (6,449.07 km) |
| South Portland to Capo d'Orlando | 4,256.17 mi (6,849.65 km) |
