| Seaham to Cernavoda | 1,486.79 mi (2,392.76 km) |
| Seaham to Chitila | 1,401.65 mi (2,255.73 km) |
| Seaham to Cisnadie | 1,279.82 mi (2,059.67 km) |
| Seaham to Cluj-Napoca | 1,213.88 mi (1,953.56 km) |
| Seaham to Codlea | 1,329.41 mi (2,139.48 km) |
| Seaham to Comanesti | 1,337.49 mi (2,152.48 km) |
| Seaham to Comarnic | 1,355.84 mi (2,182.01 km) |
| Seaham to Constanta | 1,517.20 mi (2,441.69 km) |
| Seaham to Corabia | 1,380.40 mi (2,221.54 km) |
| Seaham to Costesti | 1,353.16 mi (2,177.71 km) |
| Seaham to Covasna | 1,351.25 mi (2,174.62 km) |
| Seaham to Craiova | 1,329.15 mi (2,139.06 km) |
| Seaham to Cristuru Secuiesc | 1,288.84 mi (2,074.19 km) |
| Seaham to Cugir | 1,244.59 mi (2,002.98 km) |
| Seaham to Cumpana | 1,516.62 mi (2,440.77 km) |
