| Houghton Regis to Culpeper (Virginia) | 3,698.86 mi (5,952.75 km) |
| Houghton Regis to Culver City (California) | 5,417.12 mi (8,718.01 km) |
| Houghton Regis to Cumberland (Maryland) | 3,675.62 mi (5,915.34 km) |
| Houghton Regis to Cupertino (California) | 5,338.09 mi (8,590.83 km) |
| Houghton Regis to Cutler Bay (Florida) | 4,422.73 mi (7,117.70 km) |
| Houghton Regis to Cutlerville (Michigan) | 3,801.13 mi (6,117.32 km) |
| Houghton Regis to Cuyahoga Falls (Ohio) | 3,716.78 mi (5,981.58 km) |
| Houghton Regis to Cypress (California) | 5,416.49 mi (8,716.99 km) |
| Houghton Regis to Cypress Gardens (Florida) | 4,356.34 mi (7,010.85 km) |
| Houghton Regis to Cypress Lake (Florida) | 4,439.42 mi (7,144.56 km) |
| Houghton Regis to D'Iberville (Mississippi) | 4,528.00 mi (7,287.12 km) |
| Houghton Regis to Dakota Ridge (Colorado) | 4,666.88 mi (7,510.61 km) |
| Houghton Regis to Dale City (Virginia) | 3,664.26 mi (5,897.06 km) |
| Houghton Regis to Dallas (Georgia) | 4,192.03 mi (6,746.42 km) |
| Houghton Regis to Dallas (Oregon) | 4,932.50 mi (7,938.09 km) |
