| Grain Valley to Popovo | 5,638.73 mi (9,074.67 km) |
| Grain Valley to Provadia | 5,687.85 mi (9,153.71 km) |
| Grain Valley to Radnevo | 5,681.79 mi (9,143.95 km) |
| Grain Valley to Radomir | 5,564.36 mi (8,954.97 km) |
| Grain Valley to Rakitovo | 5,632.81 mi (9,065.13 km) |
| Grain Valley to Rakovski | 5,648.65 mi (9,090.62 km) |
| Grain Valley to Razgrad | 5,639.02 mi (9,075.12 km) |
| Grain Valley to Razlog | 5,615.79 mi (9,037.74 km) |
| Grain Valley to Ruse | 5,605.23 mi (9,020.75 km) |
| Grain Valley to Samokov | 5,596.45 mi (9,006.61 km) |
| Grain Valley to Sandanski | 5,624.79 mi (9,052.23 km) |
| Grain Valley to Sevlievo | 5,616.71 mi (9,039.22 km) |
| Grain Valley to Shumen | 5,665.87 mi (9,118.33 km) |
| Grain Valley to Silistra | 5,634.10 mi (9,067.21 km) |
| Grain Valley to Sliven | 5,676.08 mi (9,134.77 km) |
