| Llantwit Major to Reidsville (North Carolina) | 3,754.37 mi (6,042.08 km) |
| Llantwit Major to Reisterstown (Maryland) | 3,495.92 mi (5,626.14 km) |
| Llantwit Major to Rendon (Texas) | 4,647.92 mi (7,480.11 km) |
| Llantwit Major to Reno (Nevada) | 5,078.38 mi (8,172.87 km) |
| Llantwit Major to Renton (Washington) | 4,703.17 mi (7,569.02 km) |
| Llantwit Major to Republic (Missouri) | 4,271.47 mi (6,874.27 km) |
| Llantwit Major to Reston (Virginia) | 3,540.12 mi (5,697.27 km) |
| Llantwit Major to Revere (Massachusetts) | 3,130.85 mi (5,038.61 km) |
| Llantwit Major to Rexburg (Idaho) | 4,590.38 mi (7,387.50 km) |
| Llantwit Major to Reynoldsburg (Ohio) | 3,717.34 mi (5,982.48 km) |
| Llantwit Major to Rialto (California) | 5,303.56 mi (8,535.25 km) |
| Llantwit Major to Richardson (Texas) | 4,607.29 mi (7,414.71 km) |
| Llantwit Major to Richfield (Minnesota) | 3,898.94 mi (6,274.74 km) |
| Llantwit Major to Richfield (Wisconsin) | 3,784.25 mi (6,090.16 km) |
| Llantwit Major to Richland (Washington) | 4,687.53 mi (7,543.86 km) |
