| Houten to Popovo | 1,142.57 mi (1,838.79 km) |
| Houten to Provadia | 1,196.87 mi (1,926.18 km) |
| Houten to Radnevo | 1,178.12 mi (1,896.00 km) |
| Houten to Radomir | 1,055.31 mi (1,698.36 km) |
| Houten to Rakitovo | 1,124.07 mi (1,809.02 km) |
| Houten to Rakovski | 1,142.14 mi (1,838.10 km) |
| Houten to Razgrad | 1,145.76 mi (1,843.93 km) |
| Houten to Razlog | 1,106.59 mi (1,780.88 km) |
| Houten to Ruse | 1,111.28 mi (1,788.43 km) |
| Houten to Samokov | 1,087.65 mi (1,750.41 km) |
| Houten to Sandanski | 1,115.67 mi (1,795.49 km) |
| Houten to Sevlievo | 1,113.71 mi (1,792.34 km) |
| Houten to Shumen | 1,172.88 mi (1,887.57 km) |
| Houten to Silistra | 1,150.88 mi (1,852.15 km) |
| Houten to Sliven | 1,175.96 mi (1,892.52 km) |
