| Llantrisant to Crest Hill (Illinois) | 3,854.42 mi (6,203.08 km) |
| Llantrisant to Crestview (Florida) | 4,310.04 mi (6,936.35 km) |
| Llantrisant to Crestwood (Illinois) | 3,836.64 mi (6,174.47 km) |
| Llantrisant to Crestwood (Missouri) | 4,083.59 mi (6,571.90 km) |
| Llantrisant to Creve Coeur (Missouri) | 4,081.11 mi (6,567.91 km) |
| Llantrisant to Crofton (Maryland) | 3,511.24 mi (5,650.79 km) |
| Llantrisant to Crossville (Tennessee) | 3,993.84 mi (6,427.47 km) |
| Llantrisant to Crowley (Louisiana) | 4,574.25 mi (7,361.55 km) |
| Llantrisant to Crowley (Texas) | 4,652.87 mi (7,488.07 km) |
| Llantrisant to Crown Point (Indiana) | 3,831.88 mi (6,166.82 km) |
| Llantrisant to Crystal (Minnesota) | 3,893.07 mi (6,265.28 km) |
| Llantrisant to Crystal Lake (Illinois) | 3,832.83 mi (6,168.34 km) |
| Llantrisant to Cudahy (California) | 5,336.10 mi (8,587.62 km) |
| Llantrisant to Cudahy (Wisconsin) | 3,782.42 mi (6,087.21 km) |
| Llantrisant to Cullman (Alabama) | 4,152.70 mi (6,683.12 km) |
