| University of California-Santa Barbara to Racale | 6,640.83 mi (10,687.38 km) |
| University of California-Santa Barbara to Racconigi | 6,055.51 mi (9,745.41 km) |
| University of California-Santa Barbara to Raffadali | 6,642.28 mi (10,689.72 km) |
| University of California-Santa Barbara to Ragusa | 6,708.23 mi (10,795.85 km) |
| University of California-Santa Barbara to Ramacca | 6,681.71 mi (10,753.17 km) |
| University of California-Santa Barbara to Randazzo | 6,661.90 mi (10,721.30 km) |
| University of California-Santa Barbara to Rapallo | 6,126.87 mi (9,860.24 km) |
| University of California-Santa Barbara to Ravanusa | 6,664.23 mi (10,725.04 km) |
| University of California-Santa Barbara to Ravenna | 6,215.16 mi (10,002.33 km) |
| University of California-Santa Barbara to Recanati | 6,311.67 mi (10,157.66 km) |
| University of California-Santa Barbara to Recco | 6,123.35 mi (9,854.57 km) |
| University of California-Santa Barbara to Reggello | 6,234.62 mi (10,033.64 km) |
| University of California-Santa Barbara to Reggio di Calabria | 6,671.27 mi (10,736.38 km) |
| University of California-Santa Barbara to Reggio Emilia | 6,151.89 mi (9,900.51 km) |
| University of California-Santa Barbara to Reggiolo | 6,145.86 mi (9,890.80 km) |
