| Sulmona to Chitila | 629.13 mi (1,012.49 km) |
| Sulmona to Cisnadie | 568.10 mi (914.27 km) |
| Sulmona to Cluj-Napoca | 576.84 mi (928.33 km) |
| Sulmona to Codlea | 625.87 mi (1,007.24 km) |
| Sulmona to Comanesti | 688.85 mi (1,108.60 km) |
| Sulmona to Comarnic | 625.10 mi (1,006.01 km) |
| Sulmona to Constanta | 755.09 mi (1,215.20 km) |
| Sulmona to Corabia | 547.96 mi (881.85 km) |
| Sulmona to Costesti | 578.77 mi (931.45 km) |
| Sulmona to Covasna | 663.07 mi (1,067.11 km) |
| Sulmona to Craiova | 522.26 mi (840.50 km) |
| Sulmona to Cristuru Secuiesc | 622.97 mi (1,002.57 km) |
| Sulmona to Cugir | 537.26 mi (864.63 km) |
| Sulmona to Cumpana | 750.88 mi (1,208.43 km) |
| Sulmona to Curtea de Arges | 578.35 mi (930.77 km) |
