| Ter Apel to Popovo | 1,096.78 mi (1,765.10 km) |
| Ter Apel to Provadia | 1,148.71 mi (1,848.67 km) |
| Ter Apel to Radnevo | 1,137.35 mi (1,830.39 km) |
| Ter Apel to Radomir | 1,022.71 mi (1,645.90 km) |
| Ter Apel to Rakitovo | 1,090.09 mi (1,754.34 km) |
| Ter Apel to Rakovski | 1,104.22 mi (1,777.07 km) |
| Ter Apel to Razgrad | 1,098.49 mi (1,767.84 km) |
| Ter Apel to Razlog | 1,075.02 mi (1,730.07 km) |
| Ter Apel to Ruse | 1,064.24 mi (1,712.73 km) |
| Ter Apel to Samokov | 1,053.94 mi (1,696.15 km) |
| Ter Apel to Sandanski | 1,085.96 mi (1,747.69 km) |
| Ter Apel to Sevlievo | 1,072.34 mi (1,725.77 km) |
| Ter Apel to Shumen | 1,125.56 mi (1,811.42 km) |
| Ter Apel to Silistra | 1,099.38 mi (1,769.28 km) |
| Ter Apel to Sliven | 1,132.59 mi (1,822.72 km) |
