| Weirton to Popovo | 5,074.66 mi (8,166.87 km) |
| Weirton to Provadia | 5,127.86 mi (8,252.50 km) |
| Weirton to Radnevo | 5,110.24 mi (8,224.14 km) |
| Weirton to Radomir | 4,982.21 mi (8,018.09 km) |
| Weirton to Rakitovo | 5,051.85 mi (8,130.17 km) |
| Weirton to Rakovski | 5,073.04 mi (8,164.27 km) |
| Weirton to Razgrad | 5,077.23 mi (8,171.00 km) |
| Weirton to Razlog | 5,031.79 mi (8,097.89 km) |
| Weirton to Ruse | 5,042.83 mi (8,115.65 km) |
| Weirton to Samokov | 5,015.44 mi (8,071.57 km) |
| Weirton to Sandanski | 5,038.25 mi (8,108.28 km) |
| Weirton to Sevlievo | 5,046.05 mi (8,120.84 km) |
| Weirton to Shumen | 5,104.34 mi (8,214.64 km) |
| Weirton to Silistra | 5,078.99 mi (8,173.84 km) |
| Weirton to Sliven | 5,108.47 mi (8,221.28 km) |
