| Illescas to Cividale del Friuli | 961.41 mi (1,547.23 km) |
| Illescas to Civita Castellana | 856.30 mi (1,378.08 km) |
| Illescas to Civitanova Marche | 930.50 mi (1,497.49 km) |
| Illescas to Civitavecchia | 824.11 mi (1,326.27 km) |
| Illescas to Civitella in Val di Chiana | 831.75 mi (1,338.57 km) |
| Illescas to Clusone | 800.80 mi (1,288.76 km) |
| Illescas to Coccaglio | 792.99 mi (1,276.19 km) |
| Illescas to Codigoro | 873.86 mi (1,406.35 km) |
| Illescas to Codogno | 769.96 mi (1,239.14 km) |
| Illescas to Codroipo | 937.70 mi (1,509.09 km) |
| Illescas to Cogoleto | 702.20 mi (1,130.08 km) |
| Illescas to Colle di Val d'Elsa | 802.78 mi (1,291.94 km) |
| Illescas to Colle Salvetti | 773.87 mi (1,245.43 km) |
| Illescas to Collecchio | 783.37 mi (1,260.72 km) |
| Illescas to Colleferro | 885.26 mi (1,424.69 km) |
