| Llanelli to Rockville (Maryland) | 3,492.57 mi (5,620.75 km) |
| Llanelli to Rockville Centre (New York) | 3,278.88 mi (5,276.85 km) |
| Llanelli to Rockwall (Texas) | 4,564.58 mi (7,345.98 km) |
| Llanelli to Rocky Mount (North Carolina) | 3,660.23 mi (5,890.57 km) |
| Llanelli to Rocky Point (New York) | 3,238.38 mi (5,211.67 km) |
| Llanelli to Rocky River (Ohio) | 3,577.88 mi (5,758.04 km) |
| Llanelli to Roessleville (New York) | 3,200.35 mi (5,150.47 km) |
| Llanelli to Rogers (Arkansas) | 4,304.84 mi (6,927.97 km) |
| Llanelli to Rogers (Minnesota) | 3,860.30 mi (6,212.55 km) |
| Llanelli to Rohnert Park (California) | 5,199.56 mi (8,367.88 km) |
| Llanelli to Rolla (Missouri) | 4,132.06 mi (6,649.90 km) |
| Llanelli to Rolling Meadows (Illinois) | 3,793.41 mi (6,104.90 km) |
| Llanelli to Roma (Texas) | 5,003.12 mi (8,051.74 km) |
| Llanelli to Rome (Georgia) | 4,045.61 mi (6,510.79 km) |
| Llanelli to Rome (New York) | 3,247.42 mi (5,226.22 km) |
