| Ubbergen to Popovo | 1,107.76 mi (1,782.77 km) |
| Ubbergen to Provadia | 1,162.07 mi (1,870.17 km) |
| Ubbergen to Radnevo | 1,143.37 mi (1,840.08 km) |
| Ubbergen to Radomir | 1,020.87 mi (1,642.93 km) |
| Ubbergen to Rakitovo | 1,089.57 mi (1,753.50 km) |
| Ubbergen to Rakovski | 1,107.48 mi (1,782.31 km) |
| Ubbergen to Razgrad | 1,110.95 mi (1,787.91 km) |
| Ubbergen to Razlog | 1,072.22 mi (1,725.57 km) |
| Ubbergen to Ruse | 1,076.47 mi (1,732.41 km) |
| Ubbergen to Samokov | 1,053.16 mi (1,694.90 km) |
| Ubbergen to Sandanski | 1,081.42 mi (1,740.37 km) |
| Ubbergen to Sevlievo | 1,078.95 mi (1,736.39 km) |
| Ubbergen to Shumen | 1,138.07 mi (1,831.55 km) |
| Ubbergen to Silistra | 1,116.13 mi (1,796.24 km) |
| Ubbergen to Sliven | 1,141.16 mi (1,836.53 km) |
