| Delaware to Ratingen | 4,121.55 mi (6,632.99 km) |
| Delaware to Ratzeburg | 4,186.68 mi (6,737.80 km) |
| Delaware to Raubling | 4,447.16 mi (7,157.00 km) |
| Delaware to Rauenberg | 4,261.10 mi (6,857.57 km) |
| Delaware to Raunheim | 4,225.58 mi (6,800.42 km) |
| Delaware to Ravensburg | 4,349.04 mi (6,999.11 km) |
| Delaware to Recke | 4,119.79 mi (6,630.16 km) |
| Delaware to Recklinghausen | 4,124.21 mi (6,637.27 km) |
| Delaware to Regen | 4,443.00 mi (7,150.31 km) |
| Delaware to Regensburg | 4,400.94 mi (7,082.63 km) |
| Delaware to Regenstauf | 4,398.75 mi (7,079.10 km) |
| Delaware to Rehau | 4,353.53 mi (7,006.33 km) |
| Delaware to Rehburg-Loccum | 4,172.39 mi (6,714.82 km) |
| Delaware to Rehlingen-Siersburg | 4,178.20 mi (6,724.16 km) |
| Delaware to Reichelsheim | 4,250.98 mi (6,841.29 km) |
