| Llantwit Major to Corinth (Mississippi) | 4,182.40 mi (6,730.93 km) |
| Llantwit Major to Corinth (Texas) | 4,612.65 mi (7,423.34 km) |
| Llantwit Major to Cornelius (North Carolina) | 3,844.65 mi (6,187.36 km) |
| Llantwit Major to Cornelius (Oregon) | 4,836.97 mi (7,784.35 km) |
| Llantwit Major to Corning (New York) | 3,390.07 mi (5,455.79 km) |
| Llantwit Major to Corona (California) | 5,323.79 mi (8,567.81 km) |
| Llantwit Major to Coronado (California) | 5,377.23 mi (8,653.82 km) |
| Llantwit Major to Corpus Christi (Texas) | 4,903.61 mi (7,891.60 km) |
| Llantwit Major to Corsicana (Texas) | 4,642.93 mi (7,472.07 km) |
| Llantwit Major to Cortland (New York) | 3,335.45 mi (5,367.88 km) |
| Llantwit Major to Corvallis (Oregon) | 4,896.98 mi (7,880.93 km) |
| Llantwit Major to Coshocton (Ohio) | 3,665.68 mi (5,899.34 km) |
| Llantwit Major to Costa Mesa (California) | 5,346.40 mi (8,604.21 km) |
| Llantwit Major to Coto de Caza (California) | 5,339.40 mi (8,592.93 km) |
| Llantwit Major to Cottage Grove (Minnesota) | 3,888.65 mi (6,258.17 km) |
