| Onesti to Cividale del Friuli | 637.34 mi (1,025.70 km) |
| Onesti to Civita Castellana | 759.91 mi (1,222.95 km) |
| Onesti to Civitanova Marche | 670.30 mi (1,078.74 km) |
| Onesti to Civitavecchia | 793.91 mi (1,277.67 km) |
| Onesti to Civitella in Val di Chiana | 761.87 mi (1,226.11 km) |
| Onesti to Clusone | 805.13 mi (1,295.73 km) |
| Onesti to Coccaglio | 807.11 mi (1,298.92 km) |
| Onesti to Codigoro | 714.77 mi (1,150.31 km) |
| Onesti to Codogno | 825.19 mi (1,328.02 km) |
| Onesti to Codroipo | 660.03 mi (1,062.21 km) |
| Onesti to Cogoleto | 887.83 mi (1,428.82 km) |
| Onesti to Colle di Val d'Elsa | 789.78 mi (1,271.03 km) |
| Onesti to Colle Salvetti | 815.97 mi (1,313.17 km) |
| Onesti to Collecchio | 806.79 mi (1,298.40 km) |
| Onesti to Colleferro | 750.35 mi (1,207.56 km) |
