| Portland to Ratingen | 5,101.41 mi (8,209.93 km) |
| Portland to Ratzeburg | 5,052.48 mi (8,131.18 km) |
| Portland to Raubling | 5,432.30 mi (8,742.44 km) |
| Portland to Rauenberg | 5,263.65 mi (8,471.03 km) |
| Portland to Raunheim | 5,214.05 mi (8,391.20 km) |
| Portland to Ravensburg | 5,372.52 mi (8,646.24 km) |
| Portland to Recke | 5,060.94 mi (8,144.80 km) |
| Portland to Recklinghausen | 5,092.67 mi (8,195.85 km) |
| Portland to Regen | 5,385.70 mi (8,667.45 km) |
| Portland to Regensburg | 5,358.70 mi (8,624.00 km) |
| Portland to Regenstauf | 5,353.38 mi (8,615.44 km) |
| Portland to Rehau | 5,283.93 mi (8,503.66 km) |
| Portland to Rehburg-Loccum | 5,090.82 mi (8,192.89 km) |
| Portland to Rehlingen-Siersburg | 5,207.61 mi (8,380.84 km) |
| Portland to Reichelsheim | 5,240.98 mi (8,434.55 km) |
