| Llantrisant to Cicero (Illinois) | 3,828.32 mi (6,161.08 km) |
| Llantrisant to Cimarron Hills (Colorado) | 4,605.67 mi (7,412.11 km) |
| Llantrisant to Cincinnati (Ohio) | 3,823.80 mi (6,153.82 km) |
| Llantrisant to Cinco Ranch (Texas) | 4,735.17 mi (7,620.52 km) |
| Llantrisant to Circleville (Ohio) | 3,739.51 mi (6,018.17 km) |
| Llantrisant to Citrus (California) | 5,317.74 mi (8,558.07 km) |
| Llantrisant to Citrus Heights (California) | 5,167.68 mi (8,316.57 km) |
| Llantrisant to Citrus Park (Florida) | 4,274.91 mi (6,879.80 km) |
| Llantrisant to Claiborne (Louisiana) | 4,450.22 mi (7,161.94 km) |
| Llantrisant to Claremont (California) | 5,311.40 mi (8,547.87 km) |
| Llantrisant to Claremont (New Hampshire) | 3,148.21 mi (5,066.56 km) |
| Llantrisant to Claremore (Oklahoma) | 4,396.23 mi (7,075.05 km) |
| Llantrisant to Clarksburg (Maryland) | 3,526.08 mi (5,674.68 km) |
| Llantrisant to Clarksburg (West Virginia) | 3,648.41 mi (5,871.55 km) |
| Llantrisant to Clarksdale (Mississippi) | 4,302.68 mi (6,924.49 km) |
