| San Martin de Valdeiglesias to Popovo | 1,580.92 mi (2,544.24 km) |
| San Martin de Valdeiglesias to Provadia | 1,641.90 mi (2,642.38 km) |
| San Martin de Valdeiglesias to Radnevo | 1,571.12 mi (2,528.48 km) |
| San Martin de Valdeiglesias to Radomir | 1,418.11 mi (2,282.23 km) |
| San Martin de Valdeiglesias to Rakitovo | 1,478.78 mi (2,379.87 km) |
| San Martin de Valdeiglesias to Rakovski | 1,521.93 mi (2,449.32 km) |
| San Martin de Valdeiglesias to Razgrad | 1,594.46 mi (2,566.04 km) |
| San Martin de Valdeiglesias to Razlog | 1,447.85 mi (2,330.09 km) |
| San Martin de Valdeiglesias to Ruse | 1,565.56 mi (2,519.52 km) |
| San Martin de Valdeiglesias to Samokov | 1,449.85 mi (2,333.30 km) |
| San Martin de Valdeiglesias to Sandanski | 1,440.50 mi (2,318.27 km) |
| San Martin de Valdeiglesias to Sevlievo | 1,525.81 mi (2,455.55 km) |
| San Martin de Valdeiglesias to Shumen | 1,616.32 mi (2,601.21 km) |
| San Martin de Valdeiglesias to Silistra | 1,629.84 mi (2,622.98 km) |
| San Martin de Valdeiglesias to Sliven | 1,589.09 mi (2,557.39 km) |
