| Holyhead to Crest Hill (Illinois) | 3,755.12 mi (6,043.28 km) |
| Holyhead to Crestview (Florida) | 4,227.79 mi (6,803.97 km) |
| Holyhead to Crestwood (Illinois) | 3,737.59 mi (6,015.07 km) |
| Holyhead to Crestwood (Missouri) | 3,986.17 mi (6,415.11 km) |
| Holyhead to Creve Coeur (Missouri) | 3,983.48 mi (6,410.79 km) |
| Holyhead to Crofton (Maryland) | 3,428.23 mi (5,517.21 km) |
| Holyhead to Crossville (Tennessee) | 3,905.93 mi (6,285.99 km) |
| Holyhead to Crowley (Louisiana) | 4,485.43 mi (7,218.60 km) |
| Holyhead to Crowley (Texas) | 4,555.44 mi (7,331.28 km) |
| Holyhead to Crown Point (Indiana) | 3,733.54 mi (6,008.55 km) |
| Holyhead to Crystal (Minnesota) | 3,784.72 mi (6,090.92 km) |
| Holyhead to Crystal Lake (Illinois) | 3,732.40 mi (6,006.71 km) |
| Holyhead to Cudahy (California) | 5,218.22 mi (8,397.92 km) |
| Holyhead to Cudahy (Wisconsin) | 3,681.43 mi (5,924.68 km) |
| Holyhead to Cullman (Alabama) | 4,065.23 mi (6,542.36 km) |
