| Horsham to Popovo | 1,346.26 mi (2,166.59 km) |
| Horsham to Provadia | 1,403.34 mi (2,258.46 km) |
| Horsham to Radnevo | 1,374.10 mi (2,211.40 km) |
| Horsham to Radomir | 1,240.48 mi (1,996.36 km) |
| Horsham to Rakitovo | 1,310.34 mi (2,108.79 km) |
| Horsham to Rakovski | 1,334.27 mi (2,147.30 km) |
| Horsham to Razgrad | 1,351.50 mi (2,175.03 km) |
| Horsham to Razlog | 1,289.30 mi (2,074.93 km) |
| Horsham to Ruse | 1,317.05 mi (2,119.58 km) |
| Horsham to Samokov | 1,274.05 mi (2,050.39 km) |
| Horsham to Sandanski | 1,295.23 mi (2,084.47 km) |
| Horsham to Sevlievo | 1,311.35 mi (2,110.42 km) |
| Horsham to Shumen | 1,378.40 mi (2,218.32 km) |
| Horsham to Silistra | 1,362.31 mi (2,192.42 km) |
| Horsham to Sliven | 1,375.81 mi (2,214.15 km) |
