| Llantwit Major to Robertsville (New Jersey) | 3,353.50 mi (5,396.93 km) |
| Llantwit Major to Robinson (Texas) | 4,701.08 mi (7,565.66 km) |
| Llantwit Major to Robstown (Texas) | 4,911.81 mi (7,904.79 km) |
| Llantwit Major to Rochester (Michigan) | 3,609.57 mi (5,809.04 km) |
| Llantwit Major to Rochester (Minnesota) | 3,908.72 mi (6,290.48 km) |
| Llantwit Major to Rochester (New Hampshire) | 3,094.52 mi (4,980.14 km) |
| Llantwit Major to Rochester (New York) | 3,369.89 mi (5,423.32 km) |
| Llantwit Major to Rochester Hills (Michigan) | 3,611.97 mi (5,812.90 km) |
| Llantwit Major to Rock Hill (South Carolina) | 3,875.42 mi (6,236.89 km) |
| Llantwit Major to Rock Island (Illinois) | 3,954.66 mi (6,364.40 km) |
| Llantwit Major to Rock Springs (Wyoming) | 4,622.65 mi (7,439.44 km) |
| Llantwit Major to Rockford (Illinois) | 3,860.02 mi (6,212.11 km) |
| Llantwit Major to Rockledge (Florida) | 4,182.64 mi (6,731.31 km) |
| Llantwit Major to Rocklin (California) | 5,163.57 mi (8,309.96 km) |
| Llantwit Major to Rockport (Texas) | 4,875.58 mi (7,846.48 km) |
