| Sligo to Civita Castellana | 1,259.05 mi (2,026.24 km) |
| Sligo to Civitanova Marche | 1,254.81 mi (2,019.42 km) |
| Sligo to Civitavecchia | 1,248.65 mi (2,009.50 km) |
| Sligo to Civitella in Val di Chiana | 1,178.28 mi (1,896.26 km) |
| Sligo to Clusone | 996.97 mi (1,604.47 km) |
| Sligo to Coccaglio | 1,012.94 mi (1,630.18 km) |
| Sligo to Codigoro | 1,123.54 mi (1,808.16 km) |
| Sligo to Codogno | 1,022.64 mi (1,645.77 km) |
| Sligo to Codroipo | 1,104.02 mi (1,776.74 km) |
| Sligo to Cogoleto | 1,025.03 mi (1,649.63 km) |
| Sligo to Colle di Val d'Elsa | 1,159.11 mi (1,865.41 km) |
| Sligo to Colle Salvetti | 1,126.87 mi (1,813.52 km) |
| Sligo to Collecchio | 1,060.35 mi (1,706.46 km) |
| Sligo to Colleferro | 1,308.81 mi (2,106.32 km) |
| Sligo to Collegno | 954.39 mi (1,535.94 km) |
