| Prescott to Popovo | 6,455.98 mi (10,389.89 km) |
| Prescott to Provadia | 6,498.18 mi (10,457.81 km) |
| Prescott to Radnevo | 6,508.43 mi (10,474.31 km) |
| Prescott to Radomir | 6,408.41 mi (10,313.33 km) |
| Prescott to Rakitovo | 6,473.70 mi (10,418.42 km) |
| Prescott to Rakovski | 6,481.73 mi (10,431.33 km) |
| Prescott to Razgrad | 6,453.06 mi (10,385.20 km) |
| Prescott to Razlog | 6,461.29 mi (10,398.44 km) |
| Prescott to Ruse | 6,420.96 mi (10,333.53 km) |
| Prescott to Samokov | 6,438.21 mi (10,361.29 km) |
| Prescott to Sandanski | 6,473.64 mi (10,418.32 km) |
| Prescott to Sevlievo | 6,443.63 mi (10,370.01 km) |
| Prescott to Shumen | 6,478.89 mi (10,426.76 km) |
| Prescott to Silistra | 6,438.97 mi (10,362.51 km) |
| Prescott to Sliven | 6,497.37 mi (10,456.51 km) |
