| Llantrisant to Corinth (Mississippi) | 4,183.19 mi (6,732.19 km) |
| Llantrisant to Corinth (Texas) | 4,612.66 mi (7,423.36 km) |
| Llantrisant to Cornelius (North Carolina) | 3,846.25 mi (6,189.95 km) |
| Llantrisant to Cornelius (Oregon) | 4,832.62 mi (7,777.34 km) |
| Llantrisant to Corning (New York) | 3,390.96 mi (5,457.22 km) |
| Llantrisant to Corona (California) | 5,321.23 mi (8,563.70 km) |
| Llantrisant to Coronado (California) | 5,374.85 mi (8,649.99 km) |
| Llantrisant to Corpus Christi (Texas) | 4,904.28 mi (7,892.68 km) |
| Llantrisant to Corsicana (Texas) | 4,643.15 mi (7,472.43 km) |
| Llantrisant to Cortland (New York) | 3,336.35 mi (5,369.33 km) |
| Llantrisant to Corvallis (Oregon) | 4,892.70 mi (7,874.04 km) |
| Llantrisant to Coshocton (Ohio) | 3,666.38 mi (5,900.47 km) |
| Llantrisant to Costa Mesa (California) | 5,343.83 mi (8,600.06 km) |
| Llantrisant to Coto de Caza (California) | 5,336.87 mi (8,588.86 km) |
| Llantrisant to Cottage Grove (Minnesota) | 3,887.42 mi (6,256.20 km) |
