| Petersburg to Popovo | 5,100.54 mi (8,208.53 km) |
| Petersburg to Provadia | 5,155.85 mi (8,297.54 km) |
| Petersburg to Radnevo | 5,131.28 mi (8,257.99 km) |
| Petersburg to Radomir | 4,997.41 mi (8,042.55 km) |
| Petersburg to Rakitovo | 5,067.33 mi (8,155.08 km) |
| Petersburg to Rakovski | 5,091.79 mi (8,194.44 km) |
| Petersburg to Razgrad | 5,104.48 mi (8,214.87 km) |
| Petersburg to Razlog | 5,045.45 mi (8,119.87 km) |
| Petersburg to Ruse | 5,069.96 mi (8,159.32 km) |
| Petersburg to Samokov | 5,031.14 mi (8,096.85 km) |
| Petersburg to Sandanski | 5,050.20 mi (8,127.52 km) |
| Petersburg to Sevlievo | 5,068.09 mi (8,156.30 km) |
| Petersburg to Shumen | 5,131.57 mi (8,258.46 km) |
| Petersburg to Silistra | 5,110.24 mi (8,224.14 km) |
| Petersburg to Sliven | 5,131.94 mi (8,259.06 km) |
