| Spa to Provadia | 1,132.05 mi (1,821.87 km) |
| Spa to Radnevo | 1,106.04 mi (1,780.00 km) |
| Spa to Radomir | 976.63 mi (1,571.74 km) |
| Spa to Rakitovo | 1,046.16 mi (1,683.63 km) |
| Spa to Rakovski | 1,067.63 mi (1,718.18 km) |
| Spa to Razgrad | 1,080.34 mi (1,738.64 km) |
| Spa to Razlog | 1,026.73 mi (1,652.36 km) |
| Spa to Ruse | 1,045.84 mi (1,683.11 km) |
| Spa to Samokov | 1,009.73 mi (1,625.00 km) |
| Spa to Sandanski | 1,034.21 mi (1,664.40 km) |
| Spa to Sevlievo | 1,042.60 mi (1,677.90 km) |
| Spa to Shumen | 1,107.33 mi (1,782.07 km) |
| Spa to Silistra | 1,089.93 mi (1,754.07 km) |
| Spa to Sliven | 1,106.40 mi (1,780.59 km) |
| Spa to Smolyan | 1,088.27 mi (1,751.40 km) |
