| Houghton Regis to Busto Arsizio | 608.50 mi (979.28 km) |
| Houghton Regis to Busto Garolfo | 612.95 mi (986.45 km) |
| Houghton Regis to Cabras | 933.02 mi (1,501.56 km) |
| Houghton Regis to Cadelbosco di Sopra | 708.66 mi (1,140.47 km) |
| Houghton Regis to Cadoneghe | 720.76 mi (1,159.96 km) |
| Houghton Regis to Cagli | 839.11 mi (1,350.42 km) |
| Houghton Regis to Cagliari | 990.16 mi (1,593.50 km) |
| Houghton Regis to Cairo Montenotte | 657.07 mi (1,057.46 km) |
| Houghton Regis to Caivano | 1,031.14 mi (1,659.46 km) |
| Houghton Regis to Calcinaia | 766.46 mi (1,233.50 km) |
| Houghton Regis to Calcinato | 667.59 mi (1,074.38 km) |
| Houghton Regis to Calderara di Reno | 740.93 mi (1,192.41 km) |
| Houghton Regis to Caldogno | 698.13 mi (1,123.54 km) |
| Houghton Regis to Calenzano | 773.97 mi (1,245.58 km) |
| Houghton Regis to Calolziocorte | 617.72 mi (994.13 km) |
