| Millbrae to Popovo | 6,508.11 mi (10,473.80 km) |
| Millbrae to Provadia | 6,543.18 mi (10,530.23 km) |
| Millbrae to Radnevo | 6,567.79 mi (10,569.83 km) |
| Millbrae to Radomir | 6,486.11 mi (10,438.38 km) |
| Millbrae to Rakitovo | 6,546.96 mi (10,536.32 km) |
| Millbrae to Rakovski | 6,547.58 mi (10,537.32 km) |
| Millbrae to Razgrad | 6,502.43 mi (10,464.64 km) |
| Millbrae to Razlog | 6,539.14 mi (10,523.72 km) |
| Millbrae to Ruse | 6,472.57 mi (10,416.59 km) |
| Millbrae to Samokov | 6,513.09 mi (10,481.80 km) |
| Millbrae to Sandanski | 6,554.36 mi (10,548.23 km) |
| Millbrae to Sevlievo | 6,504.75 mi (10,468.39 km) |
| Millbrae to Shumen | 6,526.72 mi (10,503.75 km) |
| Millbrae to Silistra | 6,480.59 mi (10,429.50 km) |
| Millbrae to Sliven | 6,552.15 mi (10,544.67 km) |
