| Friendly to Popovo | 5,010.93 mi (8,064.32 km) |
| Friendly to Provadia | 5,065.79 mi (8,152.60 km) |
| Friendly to Radnevo | 5,042.81 mi (8,115.62 km) |
| Friendly to Radomir | 4,910.27 mi (7,902.32 km) |
| Friendly to Rakitovo | 4,980.16 mi (8,014.79 km) |
| Friendly to Rakovski | 5,003.84 mi (8,052.91 km) |
| Friendly to Razgrad | 5,014.56 mi (8,070.16 km) |
| Friendly to Razlog | 4,958.71 mi (7,980.27 km) |
| Friendly to Ruse | 4,980.06 mi (8,014.63 km) |
| Friendly to Samokov | 4,943.90 mi (7,956.44 km) |
| Friendly to Sandanski | 4,963.88 mi (7,988.59 km) |
| Friendly to Sevlievo | 4,979.36 mi (8,013.50 km) |
| Friendly to Shumen | 5,041.67 mi (8,113.78 km) |
| Friendly to Silistra | 5,019.42 mi (8,077.98 km) |
| Friendly to Sliven | 5,042.91 mi (8,115.78 km) |
