| Houghton Regis to Cicero (Illinois) | 3,926.33 mi (6,318.81 km) |
| Houghton Regis to Cimarron Hills (Colorado) | 4,691.91 mi (7,550.91 km) |
| Houghton Regis to Cincinnati (Ohio) | 3,927.44 mi (6,320.60 km) |
| Houghton Regis to Cinco Ranch (Texas) | 4,838.74 mi (7,787.19 km) |
| Houghton Regis to Circleville (Ohio) | 3,843.82 mi (6,186.03 km) |
| Houghton Regis to Citrus (California) | 5,394.57 mi (8,681.73 km) |
| Houghton Regis to Citrus Heights (California) | 5,235.72 mi (8,426.07 km) |
| Houghton Regis to Citrus Park (Florida) | 4,389.38 mi (7,064.03 km) |
| Houghton Regis to Claiborne (Louisiana) | 4,554.28 mi (7,329.41 km) |
| Houghton Regis to Claremont (California) | 5,388.43 mi (8,671.85 km) |
| Houghton Regis to Claremont (New Hampshire) | 3,255.57 mi (5,239.33 km) |
| Houghton Regis to Claremore (Oklahoma) | 4,493.77 mi (7,232.02 km) |
| Houghton Regis to Clarksburg (Maryland) | 3,634.81 mi (5,849.67 km) |
| Houghton Regis to Clarksburg (West Virginia) | 3,754.96 mi (6,043.02 km) |
| Houghton Regis to Clarksdale (Mississippi) | 4,406.53 mi (7,091.63 km) |
