| Sonseca to Cividale del Friuli | 981.83 mi (1,580.11 km) |
| Sonseca to Civita Castellana | 870.32 mi (1,400.64 km) |
| Sonseca to Civitanova Marche | 946.24 mi (1,522.83 km) |
| Sonseca to Civitavecchia | 837.80 mi (1,348.31 km) |
| Sonseca to Civitella in Val di Chiana | 848.20 mi (1,365.05 km) |
| Sonseca to Clusone | 822.42 mi (1,323.55 km) |
| Sonseca to Coccaglio | 814.08 mi (1,310.14 km) |
| Sonseca to Codigoro | 892.79 mi (1,436.81 km) |
| Sonseca to Codogno | 790.52 mi (1,272.22 km) |
| Sonseca to Codroipo | 958.10 mi (1,541.91 km) |
| Sonseca to Cogoleto | 721.90 mi (1,161.78 km) |
| Sonseca to Colle di Val d'Elsa | 819.38 mi (1,318.66 km) |
| Sonseca to Colle Salvetti | 791.11 mi (1,273.16 km) |
| Sonseca to Collecchio | 802.95 mi (1,292.23 km) |
| Sonseca to Colleferro | 898.05 mi (1,445.27 km) |
