| California to Ratingen | 3,957.69 mi (6,369.28 km) |
| California to Ratzeburg | 4,045.22 mi (6,510.15 km) |
| California to Raubling | 4,272.87 mi (6,876.52 km) |
| California to Rauenberg | 4,088.30 mi (6,579.48 km) |
| California to Raunheim | 4,056.81 mi (6,528.80 km) |
| California to Ravensburg | 4,169.37 mi (6,709.95 km) |
| California to Recke | 3,964.31 mi (6,379.94 km) |
| California to Recklinghausen | 3,962.72 mi (6,377.38 km) |
| California to Regen | 4,277.70 mi (6,884.29 km) |
| California to Regensburg | 4,233.67 mi (6,813.44 km) |
| California to Regenstauf | 4,232.20 mi (6,811.06 km) |
| California to Rehau | 4,193.36 mi (6,748.57 km) |
| California to Rehburg-Loccum | 4,020.16 mi (6,469.82 km) |
| California to Rehlingen-Siersburg | 4,002.02 mi (6,440.63 km) |
| California to Reichelsheim | 4,081.15 mi (6,567.97 km) |
