| Whitburn to Popovo | 1,575.35 mi (2,535.29 km) |
| Whitburn to Provadia | 1,627.02 mi (2,618.43 km) |
| Whitburn to Radnevo | 1,615.59 mi (2,600.04 km) |
| Whitburn to Radomir | 1,498.05 mi (2,410.88 km) |
| Whitburn to Rakitovo | 1,566.16 mi (2,520.49 km) |
| Whitburn to Rakovski | 1,581.77 mi (2,545.62 km) |
| Whitburn to Razgrad | 1,576.94 mi (2,537.84 km) |
| Whitburn to Razlog | 1,549.87 mi (2,494.27 km) |
| Whitburn to Ruse | 1,542.73 mi (2,482.79 km) |
| Whitburn to Samokov | 1,529.85 mi (2,462.06 km) |
| Whitburn to Sandanski | 1,559.75 mi (2,510.18 km) |
| Whitburn to Sevlievo | 1,550.65 mi (2,495.54 km) |
| Whitburn to Shumen | 1,604.00 mi (2,581.39 km) |
| Whitburn to Silistra | 1,576.92 mi (2,537.81 km) |
| Whitburn to Sliven | 1,611.14 mi (2,592.87 km) |
