| Alloa to Popovo | 1,585.41 mi (2,551.47 km) |
| Alloa to Provadia | 1,636.75 mi (2,634.10 km) |
| Alloa to Radnevo | 1,626.24 mi (2,617.18 km) |
| Alloa to Radomir | 1,509.62 mi (2,429.50 km) |
| Alloa to Rakitovo | 1,577.58 mi (2,538.86 km) |
| Alloa to Rakovski | 1,592.76 mi (2,563.29 km) |
| Alloa to Razgrad | 1,586.81 mi (2,553.73 km) |
| Alloa to Razlog | 1,561.54 mi (2,513.06 km) |
| Alloa to Ruse | 1,552.65 mi (2,498.75 km) |
| Alloa to Samokov | 1,541.30 mi (2,480.48 km) |
| Alloa to Sandanski | 1,571.61 mi (2,529.27 km) |
| Alloa to Sevlievo | 1,561.25 mi (2,512.59 km) |
| Alloa to Shumen | 1,613.86 mi (2,597.25 km) |
| Alloa to Silistra | 1,586.25 mi (2,552.82 km) |
| Alloa to Sliven | 1,621.47 mi (2,609.51 km) |
