| Youngstown to Popovo | 5,044.77 mi (8,118.78 km) |
| Youngstown to Provadia | 5,097.67 mi (8,203.91 km) |
| Youngstown to Radnevo | 5,081.01 mi (8,177.09 km) |
| Youngstown to Radomir | 4,953.84 mi (7,972.43 km) |
| Youngstown to Rakitovo | 5,023.41 mi (8,084.39 km) |
| Youngstown to Rakovski | 5,044.14 mi (8,117.76 km) |
| Youngstown to Razgrad | 5,047.15 mi (8,122.61 km) |
| Youngstown to Razlog | 5,003.61 mi (8,052.54 km) |
| Youngstown to Ruse | 5,012.79 mi (8,067.31 km) |
| Youngstown to Samokov | 4,986.98 mi (8,025.77 km) |
| Youngstown to Sandanski | 5,010.30 mi (8,063.30 km) |
| Youngstown to Sevlievo | 5,016.71 mi (8,073.61 km) |
| Youngstown to Shumen | 5,074.26 mi (8,166.24 km) |
| Youngstown to Silistra | 5,048.38 mi (8,124.58 km) |
| Youngstown to Sliven | 5,078.90 mi (8,173.69 km) |
