| Seaham to Cividale del Friuli | 883.70 mi (1,422.18 km) |
| Seaham to Civita Castellana | 1,066.60 mi (1,716.53 km) |
| Seaham to Civitanova Marche | 1,044.93 mi (1,681.65 km) |
| Seaham to Civitavecchia | 1,062.57 mi (1,710.04 km) |
| Seaham to Civitella in Val di Chiana | 982.23 mi (1,580.75 km) |
| Seaham to Clusone | 792.10 mi (1,274.76 km) |
| Seaham to Coccaglio | 811.17 mi (1,305.45 km) |
| Seaham to Codigoro | 912.08 mi (1,467.86 km) |
| Seaham to Codogno | 827.34 mi (1,331.48 km) |
| Seaham to Codroipo | 876.59 mi (1,410.73 km) |
| Seaham to Cogoleto | 847.40 mi (1,363.76 km) |
| Seaham to Colle di Val d'Elsa | 967.94 mi (1,557.74 km) |
| Seaham to Colle Salvetti | 939.49 mi (1,511.96 km) |
| Seaham to Collecchio | 864.64 mi (1,391.50 km) |
| Seaham to Colleferro | 1,115.97 mi (1,795.97 km) |
