| Llantwit Major to Rosemont (California) | 5,181.57 mi (8,338.94 km) |
| Llantwit Major to Rosemount (Minnesota) | 3,896.93 mi (6,271.50 km) |
| Llantwit Major to Rosenberg (Texas) | 4,746.98 mi (7,639.53 km) |
| Llantwit Major to Roseville (California) | 5,167.85 mi (8,316.86 km) |
| Llantwit Major to Roseville (Michigan) | 3,610.16 mi (5,809.99 km) |
| Llantwit Major to Roseville (Minnesota) | 3,887.87 mi (6,256.92 km) |
| Llantwit Major to Rossmoor (California) | 5,345.12 mi (8,602.14 km) |
| Llantwit Major to Rossville (Maryland) | 3,486.28 mi (5,610.62 km) |
| Llantwit Major to Roswell (Georgia) | 4,056.03 mi (6,527.54 km) |
| Llantwit Major to Roswell (New Mexico) | 4,886.82 mi (7,864.57 km) |
| Llantwit Major to Round Lake (Illinois) | 3,819.32 mi (6,146.60 km) |
| Llantwit Major to Round Lake Beach (Illinois) | 3,816.75 mi (6,142.47 km) |
| Llantwit Major to Round Rock (Texas) | 4,770.05 mi (7,676.66 km) |
| Llantwit Major to Rowland Heights (California) | 5,328.53 mi (8,575.44 km) |
| Llantwit Major to Rowlett (Texas) | 4,603.82 mi (7,409.14 km) |
