| Allentown to Reichenbach/Vogtland | 4,045.87 mi (6,511.20 km) |
| Allentown to Reinbek | 3,880.56 mi (6,245.15 km) |
| Allentown to Reinfeld | 3,880.12 mi (6,244.45 km) |
| Allentown to Reinheim | 3,932.78 mi (6,329.20 km) |
| Allentown to Reiskirchen | 3,909.98 mi (6,292.50 km) |
| Allentown to Rellingen | 3,860.41 mi (6,212.74 km) |
| Allentown to Remagen | 3,846.72 mi (6,190.70 km) |
| Allentown to Remscheid | 3,828.49 mi (6,161.37 km) |
| Allentown to Rendsburg | 3,836.81 mi (6,174.75 km) |
| Allentown to Renningen | 3,969.06 mi (6,387.59 km) |
| Allentown to Reutlingen | 3,989.30 mi (6,420.15 km) |
| Allentown to Rhaude | 3,787.92 mi (6,096.07 km) |
| Allentown to Rheda-Wiedenbruck | 3,853.26 mi (6,201.22 km) |
| Allentown to Rhede | 3,790.91 mi (6,100.89 km) |
| Allentown to Rheinau | 3,931.08 mi (6,326.47 km) |
