| Saltcoats to Popovo | 1,610.45 mi (2,591.77 km) |
| Saltcoats to Provadia | 1,662.72 mi (2,675.88 km) |
| Saltcoats to Radnevo | 1,649.50 mi (2,654.61 km) |
| Saltcoats to Radomir | 1,529.95 mi (2,462.22 km) |
| Saltcoats to Rakitovo | 1,598.39 mi (2,572.36 km) |
| Saltcoats to Rakovski | 1,614.97 mi (2,599.05 km) |
| Saltcoats to Razgrad | 1,612.39 mi (2,594.89 km) |
| Saltcoats to Razlog | 1,581.50 mi (2,545.19 km) |
| Saltcoats to Ruse | 1,578.10 mi (2,539.71 km) |
| Saltcoats to Samokov | 1,562.02 mi (2,513.83 km) |
| Saltcoats to Sandanski | 1,590.91 mi (2,560.33 km) |
| Saltcoats to Sevlievo | 1,584.68 mi (2,550.30 km) |
| Saltcoats to Shumen | 1,639.48 mi (2,638.49 km) |
| Saltcoats to Silistra | 1,613.36 mi (2,596.46 km) |
| Saltcoats to Sliven | 1,645.67 mi (2,648.45 km) |
