| Alcoa to Popovo | 5,429.73 mi (8,738.31 km) |
| Alcoa to Provadia | 5,483.68 mi (8,825.13 km) |
| Alcoa to Radnevo | 5,463.64 mi (8,792.88 km) |
| Alcoa to Radomir | 5,333.35 mi (8,583.19 km) |
| Alcoa to Rakitovo | 5,403.14 mi (8,695.52 km) |
| Alcoa to Rakovski | 5,425.58 mi (8,731.63 km) |
| Alcoa to Razgrad | 5,432.77 mi (8,743.20 km) |
| Alcoa to Razlog | 5,382.36 mi (8,662.07 km) |
| Alcoa to Ruse | 5,398.31 mi (8,687.74 km) |
| Alcoa to Samokov | 5,366.79 mi (8,637.02 km) |
| Alcoa to Sandanski | 5,388.14 mi (8,671.38 km) |
| Alcoa to Sevlievo | 5,399.77 mi (8,690.09 km) |
| Alcoa to Shumen | 5,459.89 mi (8,786.85 km) |
| Alcoa to Silistra | 5,435.83 mi (8,748.12 km) |
| Alcoa to Sliven | 5,462.73 mi (8,791.42 km) |
