| Portalegre to Popovo | 1,755.70 mi (2,825.53 km) |
| Portalegre to Provadia | 1,816.60 mi (2,923.53 km) |
| Portalegre to Radnevo | 1,744.97 mi (2,808.25 km) |
| Portalegre to Radomir | 1,592.07 mi (2,562.18 km) |
| Portalegre to Rakitovo | 1,652.13 mi (2,658.84 km) |
| Portalegre to Rakovski | 1,695.70 mi (2,728.97 km) |
| Portalegre to Razgrad | 1,769.38 mi (2,847.54 km) |
| Portalegre to Razlog | 1,621.02 mi (2,608.78 km) |
| Portalegre to Ruse | 1,740.64 mi (2,801.29 km) |
| Portalegre to Samokov | 1,623.59 mi (2,612.91 km) |
| Portalegre to Sandanski | 1,613.21 mi (2,596.22 km) |
| Portalegre to Sevlievo | 1,700.31 mi (2,736.38 km) |
| Portalegre to Shumen | 1,791.07 mi (2,882.45 km) |
| Portalegre to Silistra | 1,805.09 mi (2,905.01 km) |
| Portalegre to Sliven | 1,763.33 mi (2,837.81 km) |
