| Aldenhoven to Popovo | 1,068.19 mi (1,719.09 km) |
| Aldenhoven to Provadia | 1,123.85 mi (1,808.66 km) |
| Aldenhoven to Radnevo | 1,100.63 mi (1,771.30 km) |
| Aldenhoven to Radomir | 973.94 mi (1,567.40 km) |
| Aldenhoven to Rakitovo | 1,043.17 mi (1,678.83 km) |
| Aldenhoven to Rakovski | 1,063.20 mi (1,711.05 km) |
| Aldenhoven to Razgrad | 1,072.32 mi (1,725.73 km) |
| Aldenhoven to Razlog | 1,024.59 mi (1,648.93 km) |
| Aldenhoven to Ruse | 1,037.80 mi (1,670.17 km) |
| Aldenhoven to Samokov | 1,006.72 mi (1,620.17 km) |
| Aldenhoven to Sandanski | 1,032.81 mi (1,662.15 km) |
| Aldenhoven to Sevlievo | 1,036.75 mi (1,668.50 km) |
| Aldenhoven to Shumen | 1,099.38 mi (1,769.28 km) |
| Aldenhoven to Silistra | 1,080.28 mi (1,738.54 km) |
| Aldenhoven to Sliven | 1,099.99 mi (1,770.26 km) |
