| Seaham to Cassina de' Pecchi | 797.73 mi (1,283.83 km) |
| Seaham to Cassino | 1,151.65 mi (1,853.41 km) |
| Seaham to Castagneto Carducci | 968.38 mi (1,558.46 km) |
| Seaham to Castano Primo | 780.52 mi (1,256.13 km) |
| Seaham to Castel Bolognese | 932.37 mi (1,500.50 km) |
| Seaham to Castel Gandolfo | 1,105.58 mi (1,779.26 km) |
| Seaham to Castel Goffredo | 839.81 mi (1,351.54 km) |
| Seaham to Castel Maggiore | 906.09 mi (1,458.21 km) |
| Seaham to Castel Mella | 819.43 mi (1,318.74 km) |
| Seaham to Castel San Giorgio | 1,217.48 mi (1,959.35 km) |
| Seaham to Castel San Giovanni | 826.85 mi (1,330.68 km) |
| Seaham to Castel San Pietro Terme | 921.61 mi (1,483.19 km) |
| Seaham to Castel Volturno | 1,180.45 mi (1,899.76 km) |
| Seaham to Castelbuono | 1,373.80 mi (2,210.92 km) |
| Seaham to Casteldaccia | 1,352.82 mi (2,177.16 km) |
