| Bilzen to Provadia | 1,154.68 mi (1,858.28 km) |
| Bilzen to Radnevo | 1,130.25 mi (1,818.96 km) |
| Bilzen to Radomir | 1,002.18 mi (1,612.85 km) |
| Bilzen to Rakitovo | 1,071.58 mi (1,724.54 km) |
| Bilzen to Rakovski | 1,092.34 mi (1,757.95 km) |
| Bilzen to Razgrad | 1,103.07 mi (1,775.23 km) |
| Bilzen to Razlog | 1,052.54 mi (1,693.90 km) |
| Bilzen to Ruse | 1,068.56 mi (1,719.68 km) |
| Bilzen to Samokov | 1,035.13 mi (1,665.89 km) |
| Bilzen to Sandanski | 1,060.35 mi (1,706.47 km) |
| Bilzen to Sevlievo | 1,066.56 mi (1,716.47 km) |
| Bilzen to Shumen | 1,130.11 mi (1,818.73 km) |
| Bilzen to Silistra | 1,111.66 mi (1,789.04 km) |
| Bilzen to Sliven | 1,130.07 mi (1,818.67 km) |
| Bilzen to Smolyan | 1,113.69 mi (1,792.31 km) |
