| Horizon West to Popovo | 5,698.46 mi (9,170.79 km) |
| Horizon West to Provadia | 5,755.45 mi (9,262.50 km) |
| Horizon West to Radnevo | 5,724.46 mi (9,212.63 km) |
| Horizon West to Radomir | 5,585.59 mi (8,989.14 km) |
| Horizon West to Rakitovo | 5,655.42 mi (9,101.51 km) |
| Horizon West to Rakovski | 5,682.96 mi (9,145.84 km) |
| Horizon West to Razgrad | 5,703.65 mi (9,179.14 km) |
| Horizon West to Razlog | 5,631.82 mi (9,063.55 km) |
| Horizon West to Ruse | 5,669.18 mi (9,123.66 km) |
| Horizon West to Samokov | 5,619.64 mi (9,043.94 km) |
| Horizon West to Sandanski | 5,634.82 mi (9,068.36 km) |
| Horizon West to Sevlievo | 5,662.55 mi (9,113.00 km) |
| Horizon West to Shumen | 5,730.58 mi (9,222.48 km) |
| Horizon West to Silistra | 5,712.99 mi (9,194.17 km) |
| Horizon West to Sliven | 5,727.46 mi (9,217.45 km) |
