| Cities | Distance |
|---|---|
| Frankfurt to Popovo | 950.11 mi (1,529.05 km) |
| Frankfurt to Provadia | 1,006.07 mi (1,619.11 km) |
| Frankfurt to Radnevo | 982.11 mi (1,580.55 km) |
| Frankfurt to Radomir | 855.63 mi (1,377.00 km) |
| Frankfurt to Rakitovo | 924.79 mi (1,488.31 km) |
| Frankfurt to Rakovski | 944.64 mi (1,520.25 km) |
| Frankfurt to Razgrad | 954.45 mi (1,536.05 km) |
| Frankfurt to Razlog | 906.44 mi (1,458.77 km) |
| Frankfurt to Ruse | 919.94 mi (1,480.49 km) |
| Frankfurt to Samokov | 888.34 mi (1,429.65 km) |
| Frankfurt to Sandanski | 914.91 mi (1,472.41 km) |
| Frankfurt to Sevlievo | 918.27 mi (1,477.82 km) |
| Frankfurt to Shumen | 981.49 mi (1,579.55 km) |
| Frankfurt to Silistra | 963.28 mi (1,550.24 km) |
| Frankfurt to Sliven | 981.62 mi (1,579.76 km) |