| Union Park to Popovo | 5,676.24 mi (9,135.03 km) |
| Union Park to Provadia | 5,733.29 mi (9,226.84 km) |
| Union Park to Radnevo | 5,702.06 mi (9,176.58 km) |
| Union Park to Radomir | 5,563.03 mi (8,952.83 km) |
| Union Park to Rakitovo | 5,632.84 mi (9,065.18 km) |
| Union Park to Rakovski | 5,660.49 mi (9,109.67 km) |
| Union Park to Razgrad | 5,681.48 mi (9,143.46 km) |
| Union Park to Razlog | 5,609.20 mi (9,027.13 km) |
| Union Park to Ruse | 5,647.01 mi (9,087.99 km) |
| Union Park to Samokov | 5,597.09 mi (9,007.64 km) |
| Union Park to Sandanski | 5,612.13 mi (9,031.85 km) |
| Union Park to Sevlievo | 5,640.20 mi (9,077.03 km) |
| Union Park to Shumen | 5,708.40 mi (9,186.78 km) |
| Union Park to Silistra | 5,690.97 mi (9,158.73 km) |
| Union Park to Sliven | 5,705.14 mi (9,181.54 km) |
