| Castelldefels to Popovo | 1,243.09 mi (2,000.56 km) |
| Castelldefels to Provadia | 1,303.89 mi (2,098.40 km) |
| Castelldefels to Radnevo | 1,232.07 mi (1,982.82 km) |
| Castelldefels to Radomir | 1,079.13 mi (1,736.70 km) |
| Castelldefels to Rakitovo | 1,139.50 mi (1,833.85 km) |
| Castelldefels to Rakovski | 1,182.83 mi (1,903.58 km) |
| Castelldefels to Razgrad | 1,256.96 mi (2,022.88 km) |
| Castelldefels to Razlog | 1,108.54 mi (1,784.02 km) |
| Castelldefels to Ruse | 1,228.58 mi (1,977.21 km) |
| Castelldefels to Samokov | 1,110.73 mi (1,787.54 km) |
| Castelldefels to Sandanski | 1,101.18 mi (1,772.18 km) |
| Castelldefels to Sevlievo | 1,187.45 mi (1,911.01 km) |
| Castelldefels to Shumen | 1,278.42 mi (2,057.42 km) |
| Castelldefels to Silistra | 1,293.52 mi (2,081.72 km) |
| Castelldefels to Sliven | 1,250.39 mi (2,012.30 km) |
