| Houghton Regis to Cernavoda | 1,405.84 mi (2,262.49 km) |
| Houghton Regis to Chitila | 1,313.86 mi (2,114.45 km) |
| Houghton Regis to Cisnadie | 1,194.41 mi (1,922.21 km) |
| Houghton Regis to Cluj-Napoca | 1,135.83 mi (1,827.94 km) |
| Houghton Regis to Codlea | 1,249.16 mi (2,010.32 km) |
| Houghton Regis to Comanesti | 1,267.56 mi (2,039.95 km) |
| Houghton Regis to Comarnic | 1,272.60 mi (2,048.05 km) |
| Houghton Regis to Constanta | 1,437.28 mi (2,313.08 km) |
| Houghton Regis to Corabia | 1,280.81 mi (2,061.27 km) |
| Houghton Regis to Costesti | 1,262.08 mi (2,031.13 km) |
| Houghton Regis to Covasna | 1,275.23 mi (2,052.29 km) |
| Houghton Regis to Craiova | 1,230.86 mi (1,980.87 km) |
| Houghton Regis to Cristuru Secuiesc | 1,212.20 mi (1,950.85 km) |
| Houghton Regis to Cugir | 1,157.01 mi (1,862.03 km) |
| Houghton Regis to Cumpana | 1,436.02 mi (2,311.05 km) |
