| Llantwit Major to Commerce City (Colorado) | 4,560.77 mi (7,339.84 km) |
| Llantwit Major to Compton (California) | 5,344.16 mi (8,600.59 km) |
| Llantwit Major to Comstock Park (Michigan) | 3,694.00 mi (5,944.93 km) |
| Llantwit Major to Concord (California) | 5,234.22 mi (8,423.67 km) |
| Llantwit Major to Concord (Missouri) | 4,084.89 mi (6,574.00 km) |
| Llantwit Major to Concord (New Hampshire) | 3,121.12 mi (5,022.96 km) |
| Llantwit Major to Concord (North Carolina) | 3,838.19 mi (6,176.97 km) |
| Llantwit Major to Conneaut (Ohio) | 3,541.10 mi (5,698.85 km) |
| Llantwit Major to Connersville (Indiana) | 3,824.99 mi (6,155.72 km) |
| Llantwit Major to Conroe (Texas) | 4,693.45 mi (7,553.38 km) |
| Llantwit Major to Converse (Texas) | 4,848.24 mi (7,802.49 km) |
| Llantwit Major to Conway (Arkansas) | 4,334.59 mi (6,975.84 km) |
| Llantwit Major to Conway (Florida) | 4,199.21 mi (6,757.98 km) |
| Llantwit Major to Conway (South Carolina) | 3,844.41 mi (6,186.98 km) |
| Llantwit Major to Conyers (Georgia) | 4,059.32 mi (6,532.84 km) |
