| Llantrisant to Commerce City (Colorado) | 4,558.99 mi (7,336.98 km) |
| Llantrisant to Compton (California) | 5,341.52 mi (8,596.35 km) |
| Llantrisant to Comstock Park (Michigan) | 3,693.82 mi (5,944.63 km) |
| Llantrisant to Concord (California) | 5,230.73 mi (8,418.05 km) |
| Llantrisant to Concord (Missouri) | 4,084.93 mi (6,574.06 km) |
| Llantrisant to Concord (New Hampshire) | 3,122.39 mi (5,025.00 km) |
| Llantrisant to Concord (North Carolina) | 3,839.84 mi (6,179.62 km) |
| Llantrisant to Conneaut (Ohio) | 3,541.65 mi (5,699.74 km) |
| Llantrisant to Connersville (Indiana) | 3,825.43 mi (6,156.43 km) |
| Llantrisant to Conroe (Texas) | 4,694.03 mi (7,554.31 km) |
| Llantrisant to Converse (Texas) | 4,848.57 mi (7,803.02 km) |
| Llantrisant to Conway (Arkansas) | 4,334.88 mi (6,976.32 km) |
| Llantrisant to Conway (Florida) | 4,201.80 mi (6,762.15 km) |
| Llantrisant to Conway (South Carolina) | 3,846.49 mi (6,190.33 km) |
| Llantrisant to Conyers (Georgia) | 4,060.83 mi (6,535.28 km) |
