| Billere to Popovo | 1,332.79 mi (2,144.92 km) |
| Billere to Provadia | 1,394.24 mi (2,243.81 km) |
| Billere to Radnevo | 1,331.08 mi (2,142.17 km) |
| Billere to Radomir | 1,178.48 mi (1,896.59 km) |
| Billere to Rakitovo | 1,243.07 mi (2,000.53 km) |
| Billere to Rakovski | 1,282.84 mi (2,064.53 km) |
| Billere to Razgrad | 1,344.88 mi (2,164.38 km) |
| Billere to Razlog | 1,213.65 mi (1,953.18 km) |
| Billere to Ruse | 1,314.20 mi (2,115.00 km) |
| Billere to Samokov | 1,211.58 mi (1,949.84 km) |
| Billere to Sandanski | 1,209.35 mi (1,946.26 km) |
| Billere to Sevlievo | 1,280.76 mi (2,061.19 km) |
| Billere to Shumen | 1,368.26 mi (2,202.00 km) |
| Billere to Silistra | 1,375.98 mi (2,214.42 km) |
| Billere to Sliven | 1,345.79 mi (2,165.84 km) |
