| Llanelli to Carson (California) | 5,313.19 mi (8,550.76 km) |
| Llanelli to Carson City (Nevada) | 5,062.96 mi (8,148.04 km) |
| Llanelli to Carteret (New Jersey) | 3,306.62 mi (5,321.50 km) |
| Llanelli to Cartersville (Georgia) | 4,034.70 mi (6,493.22 km) |
| Llanelli to Carthage (Missouri) | 4,270.41 mi (6,872.56 km) |
| Llanelli to Cary (Illinois) | 3,795.78 mi (6,108.72 km) |
| Llanelli to Cary (North Carolina) | 3,711.12 mi (5,972.47 km) |
| Llanelli to Casa de Oro-Mount Helix (California) | 5,330.03 mi (8,577.85 km) |
| Llanelli to Casa Grande (Arizona) | 5,140.74 mi (8,273.23 km) |
| Llanelli to Casas Adobes (Arizona) | 5,144.64 mi (8,279.50 km) |
| Llanelli to Cascades (Virginia) | 3,503.77 mi (5,638.77 km) |
| Llanelli to Casper (Wyoming) | 4,424.61 mi (7,120.72 km) |
| Llanelli to Casselberry (Florida) | 4,158.19 mi (6,691.96 km) |
| Llanelli to Castaic (California) | 5,289.42 mi (8,512.49 km) |
| Llanelli to Castle Pines (Colorado) | 4,547.14 mi (7,317.92 km) |
