| Waltrop to Popovo | 1,044.51 mi (1,680.97 km) |
| Waltrop to Provadia | 1,098.50 mi (1,767.86 km) |
| Waltrop to Radnevo | 1,081.00 mi (1,739.70 km) |
| Waltrop to Radomir | 960.23 mi (1,545.34 km) |
| Waltrop to Rakitovo | 1,028.64 mi (1,655.43 km) |
| Waltrop to Rakovski | 1,045.66 mi (1,682.83 km) |
| Waltrop to Razgrad | 1,047.49 mi (1,685.77 km) |
| Waltrop to Razlog | 1,011.87 mi (1,628.44 km) |
| Waltrop to Ruse | 1,013.02 mi (1,630.30 km) |
| Waltrop to Samokov | 992.27 mi (1,596.90 km) |
| Waltrop to Sandanski | 1,021.56 mi (1,644.04 km) |
| Waltrop to Sevlievo | 1,016.43 mi (1,635.78 km) |
| Waltrop to Shumen | 1,074.61 mi (1,729.41 km) |
| Waltrop to Silistra | 1,052.15 mi (1,693.27 km) |
| Waltrop to Sliven | 1,078.32 mi (1,735.38 km) |
