| Portland to Rheinbach | 5,141.97 mi (8,275.21 km) |
| Portland to Rheinberg | 5,081.28 mi (8,177.53 km) |
| Portland to Rheine | 5,059.17 mi (8,141.95 km) |
| Portland to Rheinfelden (Baden) | 5,339.86 mi (8,593.67 km) |
| Portland to Ribnitz-Damgarten | 5,056.68 mi (8,137.94 km) |
| Portland to Richterich | 5,110.06 mi (8,223.85 km) |
| Portland to Riedlingen | 5,347.33 mi (8,605.70 km) |
| Portland to Riegelsberg | 5,218.39 mi (8,398.19 km) |
| Portland to Rielasingen-Worblingen | 5,356.22 mi (8,620.01 km) |
| Portland to Riesa | 5,249.23 mi (8,447.82 km) |
| Portland to Rietberg | 5,110.53 mi (8,224.60 km) |
| Portland to Rinteln | 5,103.01 mi (8,212.50 km) |
| Portland to Ritterhude | 5,038.02 mi (8,107.90 km) |
| Portland to Rodenbach | 5,220.35 mi (8,401.34 km) |
| Portland to Rodental | 5,260.27 mi (8,465.59 km) |
