| Hudson to Popovo | 5,068.06 mi (8,156.26 km) |
| Hudson to Provadia | 5,120.67 mi (8,240.91 km) |
| Hudson to Radnevo | 5,104.90 mi (8,215.54 km) |
| Hudson to Radomir | 4,978.51 mi (8,012.14 km) |
| Hudson to Rakitovo | 5,048.02 mi (8,124.00 km) |
| Hudson to Rakovski | 5,068.33 mi (8,156.69 km) |
| Hudson to Razgrad | 5,070.27 mi (8,159.80 km) |
| Hudson to Razlog | 5,028.46 mi (8,092.52 km) |
| Hudson to Ruse | 5,035.94 mi (8,104.56 km) |
| Hudson to Samokov | 5,011.58 mi (8,065.36 km) |
| Hudson to Sandanski | 5,035.36 mi (8,103.62 km) |
| Hudson to Sevlievo | 5,040.50 mi (8,111.90 km) |
| Hudson to Shumen | 5,097.37 mi (8,203.42 km) |
| Hudson to Silistra | 5,070.97 mi (8,160.94 km) |
| Hudson to Sliven | 5,102.48 mi (8,211.64 km) |
