| Buckeburg to Popovo | 1,003.20 mi (1,614.49 km) |
| Buckeburg to Provadia | 1,055.01 mi (1,697.88 km) |
| Buckeburg to Radnevo | 1,044.23 mi (1,680.52 km) |
| Buckeburg to Radomir | 931.13 mi (1,498.50 km) |
| Buckeburg to Rakitovo | 998.14 mi (1,606.35 km) |
| Buckeburg to Rakovski | 1,011.53 mi (1,627.90 km) |
| Buckeburg to Razgrad | 1,004.82 mi (1,617.11 km) |
| Buckeburg to Razlog | 983.61 mi (1,582.96 km) |
| Buckeburg to Ruse | 970.59 mi (1,562.02 km) |
| Buckeburg to Samokov | 962.07 mi (1,548.31 km) |
| Buckeburg to Sandanski | 995.00 mi (1,601.30 km) |
| Buckeburg to Sevlievo | 979.17 mi (1,575.83 km) |
| Buckeburg to Shumen | 1,031.90 mi (1,660.68 km) |
| Buckeburg to Silistra | 1,005.67 mi (1,618.47 km) |
| Buckeburg to Sliven | 1,039.18 mi (1,672.40 km) |
