| Duncan to Rheinbach | 4,994.54 mi (8,037.94 km) |
| Duncan to Rheinberg | 4,947.40 mi (7,962.08 km) |
| Duncan to Rheine | 4,949.45 mi (7,965.37 km) |
| Duncan to Rheinfelden (Baden) | 5,144.72 mi (8,279.63 km) |
| Duncan to Ribnitz-Damgarten | 5,043.30 mi (8,116.40 km) |
| Duncan to Richterich | 4,955.39 mi (7,974.92 km) |
| Duncan to Riedlingen | 5,184.91 mi (8,344.30 km) |
| Duncan to Riegelsberg | 5,045.12 mi (8,119.33 km) |
| Duncan to Rielasingen-Worblingen | 5,177.87 mi (8,332.97 km) |
| Duncan to Riesa | 5,192.70 mi (8,356.85 km) |
| Duncan to Rietberg | 5,003.32 mi (8,052.07 km) |
| Duncan to Rinteln | 5,010.98 mi (8,064.40 km) |
| Duncan to Ritterhude | 4,961.22 mi (7,984.31 km) |
| Duncan to Rodenbach | 5,089.27 mi (8,190.39 km) |
| Duncan to Rodental | 5,157.15 mi (8,299.63 km) |
