| Youngsville to Popovo | 6,033.72 mi (9,710.33 km) |
| Youngsville to Provadia | 6,087.02 mi (9,796.11 km) |
| Youngsville to Radnevo | 6,068.91 mi (9,766.97 km) |
| Youngsville to Radomir | 5,939.98 mi (9,559.47 km) |
| Youngsville to Rakitovo | 6,009.70 mi (9,671.67 km) |
| Youngsville to Rakovski | 6,031.41 mi (9,706.62 km) |
| Youngsville to Razgrad | 6,036.35 mi (9,714.57 km) |
| Youngsville to Razlog | 5,989.29 mi (9,638.82 km) |
| Youngsville to Ruse | 6,001.95 mi (9,659.21 km) |
| Youngsville to Samokov | 5,973.31 mi (9,613.11 km) |
| Youngsville to Sandanski | 5,995.39 mi (9,648.64 km) |
| Youngsville to Sevlievo | 6,004.81 mi (9,663.80 km) |
| Youngsville to Shumen | 6,063.47 mi (9,758.21 km) |
| Youngsville to Silistra | 6,038.17 mi (9,717.50 km) |
| Youngsville to Sliven | 6,067.37 mi (9,764.49 km) |
