| Llantrisant to Cividale del Friuli | 849.42 mi (1,367.01 km) |
| Llantrisant to Civita Castellana | 977.66 mi (1,573.39 km) |
| Llantrisant to Civitanova Marche | 977.94 mi (1,573.84 km) |
| Llantrisant to Civitavecchia | 966.23 mi (1,555.00 km) |
| Llantrisant to Civitella in Val di Chiana | 898.03 mi (1,445.25 km) |
| Llantrisant to Clusone | 720.76 mi (1,159.96 km) |
| Llantrisant to Coccaglio | 735.54 mi (1,183.74 km) |
| Llantrisant to Codigoro | 848.30 mi (1,365.20 km) |
| Llantrisant to Codogno | 743.30 mi (1,196.22 km) |
| Llantrisant to Codroipo | 836.28 mi (1,345.86 km) |
| Llantrisant to Cogoleto | 742.30 mi (1,194.61 km) |
| Llantrisant to Colle di Val d'Elsa | 877.93 mi (1,412.88 km) |
| Llantrisant to Colle Salvetti | 845.14 mi (1,360.13 km) |
| Llantrisant to Collecchio | 780.80 mi (1,256.57 km) |
| Llantrisant to Colleferro | 1,027.31 mi (1,653.29 km) |
