| Bilston to Popovo | 1,443.67 mi (2,323.36 km) |
| Bilston to Provadia | 1,499.28 mi (2,412.86 km) |
| Bilston to Radnevo | 1,475.47 mi (2,374.54 km) |
| Bilston to Radomir | 1,346.28 mi (2,166.63 km) |
| Bilston to Rakitovo | 1,415.86 mi (2,278.61 km) |
| Bilston to Rakovski | 1,437.34 mi (2,313.18 km) |
| Bilston to Razgrad | 1,447.78 mi (2,329.98 km) |
| Bilston to Razlog | 1,396.18 mi (2,246.94 km) |
| Bilston to Ruse | 1,413.26 mi (2,274.42 km) |
| Bilston to Samokov | 1,379.44 mi (2,219.99 km) |
| Bilston to Sandanski | 1,403.31 mi (2,258.40 km) |
| Bilston to Sevlievo | 1,411.81 mi (2,272.09 km) |
| Bilston to Shumen | 1,474.84 mi (2,373.53 km) |
| Bilston to Silistra | 1,455.20 mi (2,341.92 km) |
| Bilston to Sliven | 1,475.28 mi (2,374.23 km) |
