| Viana do Castelo to Popovo | 1,776.09 mi (2,858.34 km) |
| Viana do Castelo to Provadia | 1,837.52 mi (2,957.20 km) |
| Viana do Castelo to Radnevo | 1,773.11 mi (2,853.54 km) |
| Viana do Castelo to Radomir | 1,620.22 mi (2,607.49 km) |
| Viana do Castelo to Rakitovo | 1,683.91 mi (2,710.00 km) |
| Viana do Castelo to Rakovski | 1,724.59 mi (2,775.47 km) |
| Viana do Castelo to Razgrad | 1,788.30 mi (2,878.00 km) |
| Viana do Castelo to Razlog | 1,654.01 mi (2,661.87 km) |
| Viana do Castelo to Ruse | 1,757.71 mi (2,828.76 km) |
| Viana do Castelo to Samokov | 1,653.04 mi (2,660.30 km) |
| Viana do Castelo to Sandanski | 1,648.76 mi (2,653.42 km) |
| Viana do Castelo to Sevlievo | 1,723.65 mi (2,773.95 km) |
| Viana do Castelo to Shumen | 1,811.57 mi (2,915.44 km) |
| Viana do Castelo to Silistra | 1,819.52 mi (2,928.23 km) |
| Viana do Castelo to Sliven | 1,788.46 mi (2,878.24 km) |
