| Horten to Popovo | 1,295.35 mi (2,084.66 km) |
| Horten to Provadia | 1,332.30 mi (2,144.13 km) |
| Horten to Radnevo | 1,354.90 mi (2,180.50 km) |
| Horten to Radomir | 1,281.59 mi (2,062.52 km) |
| Horten to Rakitovo | 1,338.74 mi (2,154.49 km) |
| Horten to Rakovski | 1,336.08 mi (2,150.21 km) |
| Horten to Razgrad | 1,290.14 mi (2,076.28 km) |
| Horten to Razlog | 1,333.97 mi (2,146.81 km) |
| Horten to Ruse | 1,259.83 mi (2,027.49 km) |
| Horten to Samokov | 1,306.21 mi (2,102.15 km) |
| Horten to Sandanski | 1,351.17 mi (2,174.50 km) |
| Horten to Sevlievo | 1,292.22 mi (2,079.62 km) |
| Horten to Shumen | 1,314.87 mi (2,116.08 km) |
| Horten to Silistra | 1,271.00 mi (2,045.47 km) |
| Horten to Sliven | 1,339.18 mi (2,155.21 km) |
