| Fountain Hills to Popovo | 6,495.45 mi (10,453.42 km) |
| Fountain Hills to Provadia | 6,538.42 mi (10,522.56 km) |
| Fountain Hills to Radnevo | 6,546.99 mi (10,536.36 km) |
| Fountain Hills to Radomir | 6,444.95 mi (10,372.15 km) |
| Fountain Hills to Rakitovo | 6,510.68 mi (10,477.93 km) |
| Fountain Hills to Rakovski | 6,519.57 mi (10,492.23 km) |
| Fountain Hills to Razgrad | 6,492.86 mi (10,449.25 km) |
| Fountain Hills to Razlog | 6,497.74 mi (10,457.10 km) |
| Fountain Hills to Ruse | 6,460.54 mi (10,397.24 km) |
| Fountain Hills to Samokov | 6,475.04 mi (10,420.57 km) |
| Fountain Hills to Sandanski | 6,509.73 mi (10,476.40 km) |
| Fountain Hills to Sevlievo | 6,482.07 mi (10,431.89 km) |
| Fountain Hills to Shumen | 6,518.82 mi (10,491.03 km) |
| Fountain Hills to Silistra | 6,479.67 mi (10,428.03 km) |
| Fountain Hills to Sliven | 6,536.48 mi (10,519.45 km) |
