| South San Francisco to Racale | 6,519.33 mi (10,491.84 km) |
| South San Francisco to Racconigi | 5,948.54 mi (9,573.24 km) |
| South San Francisco to Raffadali | 6,539.28 mi (10,523.95 km) |
| South San Francisco to Ragusa | 6,603.05 mi (10,626.58 km) |
| South San Francisco to Ramacca | 6,575.51 mi (10,582.25 km) |
| South San Francisco to Randazzo | 6,553.80 mi (10,547.32 km) |
| South San Francisco to Rapallo | 6,017.33 mi (9,683.96 km) |
| South San Francisco to Ravanusa | 6,560.35 mi (10,557.86 km) |
| South San Francisco to Ravenna | 6,098.35 mi (9,814.35 km) |
| South San Francisco to Recanati | 6,194.04 mi (9,968.35 km) |
| South San Francisco to Recco | 6,013.97 mi (9,678.54 km) |
| South San Francisco to Reggello | 6,121.24 mi (9,851.19 km) |
| South San Francisco to Reggio di Calabria | 6,560.68 mi (10,558.39 km) |
| South San Francisco to Reggio Emilia | 6,038.13 mi (9,717.43 km) |
| South San Francisco to Reggiolo | 6,031.11 mi (9,706.14 km) |
