| Pontypridd to Romeoville (Illinois) | 3,850.68 mi (6,197.07 km) |
| Pontypridd to Romulus (Michigan) | 3,639.37 mi (5,857.01 km) |
| Pontypridd to Ronkonkoma (New York) | 3,287.18 mi (5,290.20 km) |
| Pontypridd to Roosevelt (New York) | 3,311.40 mi (5,329.18 km) |
| Pontypridd to Rosamond (California) | 5,284.77 mi (8,505.01 km) |
| Pontypridd to Rosaryville (Maryland) | 3,528.45 mi (5,678.50 km) |
| Pontypridd to Roscoe (Illinois) | 3,849.27 mi (6,194.81 km) |
| Pontypridd to Rose Hill (Virginia) | 3,539.18 mi (5,695.76 km) |
| Pontypridd to Roseburg (Oregon) | 4,969.17 mi (7,997.11 km) |
| Pontypridd to Rosedale (California) | 5,287.57 mi (8,509.52 km) |
| Pontypridd to Rosedale (Maryland) | 3,490.58 mi (5,617.55 km) |
| Pontypridd to Roselle (Illinois) | 3,834.18 mi (6,170.52 km) |
| Pontypridd to Roselle (New Jersey) | 3,340.42 mi (5,375.89 km) |
| Pontypridd to Roselle Park (New Jersey) | 3,340.16 mi (5,375.47 km) |
| Pontypridd to Rosemead (California) | 5,325.26 mi (8,570.18 km) |
