| Schwalbach to Popovo | 1,009.46 mi (1,624.56 km) |
| Schwalbach to Provadia | 1,067.30 mi (1,717.65 km) |
| Schwalbach to Radnevo | 1,035.65 mi (1,666.71 km) |
| Schwalbach to Radomir | 901.60 mi (1,450.98 km) |
| Schwalbach to Rakitovo | 971.45 mi (1,563.39 km) |
| Schwalbach to Rakovski | 995.47 mi (1,602.06 km) |
| Schwalbach to Razgrad | 1,015.34 mi (1,634.03 km) |
| Schwalbach to Razlog | 950.58 mi (1,529.82 km) |
| Schwalbach to Ruse | 980.99 mi (1,578.76 km) |
| Schwalbach to Samokov | 935.15 mi (1,504.98 km) |
| Schwalbach to Sandanski | 956.82 mi (1,539.86 km) |
| Schwalbach to Sevlievo | 973.23 mi (1,566.26 km) |
| Schwalbach to Shumen | 1,042.10 mi (1,677.10 km) |
| Schwalbach to Silistra | 1,028.49 mi (1,655.19 km) |
| Schwalbach to Sliven | 1,038.00 mi (1,670.49 km) |
