| Sundern to Popovo | 1,011.59 mi (1,628.00 km) |
| Sundern to Provadia | 1,065.79 mi (1,715.23 km) |
| Sundern to Radnevo | 1,047.70 mi (1,686.11 km) |
| Sundern to Radomir | 926.60 mi (1,491.22 km) |
| Sundern to Rakitovo | 995.04 mi (1,601.37 km) |
| Sundern to Rakovski | 1,012.21 mi (1,629.00 km) |
| Sundern to Razgrad | 1,014.71 mi (1,633.01 km) |
| Sundern to Razlog | 978.22 mi (1,574.29 km) |
| Sundern to Ruse | 980.23 mi (1,577.52 km) |
| Sundern to Samokov | 958.67 mi (1,542.83 km) |
| Sundern to Sandanski | 987.89 mi (1,589.85 km) |
| Sundern to Sevlievo | 983.18 mi (1,582.27 km) |
| Sundern to Shumen | 1,041.83 mi (1,676.66 km) |
| Sundern to Silistra | 1,019.83 mi (1,641.26 km) |
| Sundern to Sliven | 1,045.20 mi (1,682.08 km) |
