| Llanelli to Reidsville (North Carolina) | 3,720.79 mi (5,988.03 km) |
| Llanelli to Reisterstown (Maryland) | 3,462.13 mi (5,571.76 km) |
| Llanelli to Rendon (Texas) | 4,613.11 mi (7,424.09 km) |
| Llanelli to Reno (Nevada) | 5,043.74 mi (8,117.12 km) |
| Llanelli to Renton (Washington) | 4,669.47 mi (7,514.79 km) |
| Llanelli to Republic (Missouri) | 4,236.57 mi (6,818.10 km) |
| Llanelli to Reston (Virginia) | 3,506.36 mi (5,642.94 km) |
| Llanelli to Revere (Massachusetts) | 3,097.14 mi (4,984.36 km) |
| Llanelli to Rexburg (Idaho) | 4,555.51 mi (7,331.38 km) |
| Llanelli to Reynoldsburg (Ohio) | 3,682.90 mi (5,927.05 km) |
| Llanelli to Rialto (California) | 5,268.49 mi (8,478.81 km) |
| Llanelli to Richardson (Texas) | 4,572.48 mi (7,358.70 km) |
| Llanelli to Richfield (Minnesota) | 3,863.71 mi (6,218.04 km) |
| Llanelli to Richfield (Wisconsin) | 3,749.19 mi (6,033.74 km) |
| Llanelli to Richland (Washington) | 4,653.42 mi (7,488.96 km) |
