| Middlesbrough to Cernavoda | 1,477.56 mi (2,377.91 km) |
| Middlesbrough to Chitila | 1,391.79 mi (2,239.86 km) |
| Middlesbrough to Cisnadie | 1,270.05 mi (2,043.95 km) |
| Middlesbrough to Cluj-Napoca | 1,204.67 mi (1,938.73 km) |
| Middlesbrough to Codlea | 1,320.12 mi (2,124.52 km) |
| Middlesbrough to Comanesti | 1,329.07 mi (2,138.93 km) |
| Middlesbrough to Comarnic | 1,346.32 mi (2,166.69 km) |
| Middlesbrough to Constanta | 1,508.07 mi (2,427.01 km) |
| Middlesbrough to Corabia | 1,369.55 mi (2,204.08 km) |
| Middlesbrough to Costesti | 1,342.99 mi (2,161.34 km) |
| Middlesbrough to Covasna | 1,342.33 mi (2,160.27 km) |
| Middlesbrough to Craiova | 1,318.37 mi (2,121.71 km) |
| Middlesbrough to Cristuru Secuiesc | 1,279.81 mi (2,059.66 km) |
| Middlesbrough to Cugir | 1,234.62 mi (1,986.93 km) |
| Middlesbrough to Cumpana | 1,507.44 mi (2,426.00 km) |
