| Oakland to Popovo | 6,492.05 mi (10,447.94 km) |
| Oakland to Provadia | 6,527.17 mi (10,504.46 km) |
| Oakland to Radnevo | 6,551.67 mi (10,543.90 km) |
| Oakland to Radomir | 6,469.86 mi (10,412.24 km) |
| Oakland to Rakitovo | 6,530.75 mi (10,510.23 km) |
| Oakland to Rakovski | 6,531.42 mi (10,511.31 km) |
| Oakland to Razgrad | 6,486.38 mi (10,438.82 km) |
| Oakland to Razlog | 6,522.90 mi (10,497.59 km) |
| Oakland to Ruse | 6,456.50 mi (10,390.74 km) |
| Oakland to Samokov | 6,496.86 mi (10,455.69 km) |
| Oakland to Sandanski | 6,538.11 mi (10,522.07 km) |
| Oakland to Sevlievo | 6,488.62 mi (10,442.42 km) |
| Oakland to Shumen | 6,510.69 mi (10,477.94 km) |
| Oakland to Silistra | 6,464.60 mi (10,403.77 km) |
| Oakland to Sliven | 6,536.07 mi (10,518.78 km) |
