| Cascais to Popovo | 1,871.21 mi (3,011.42 km) |
| Cascais to Provadia | 1,932.10 mi (3,109.41 km) |
| Cascais to Radnevo | 1,860.30 mi (2,993.86 km) |
| Cascais to Radomir | 1,707.43 mi (2,747.84 km) |
| Cascais to Rakitovo | 1,767.33 mi (2,844.24 km) |
| Cascais to Rakovski | 1,811.02 mi (2,914.55 km) |
| Cascais to Razgrad | 1,884.90 mi (3,033.45 km) |
| Cascais to Razlog | 1,736.17 mi (2,794.10 km) |
| Cascais to Ruse | 1,856.16 mi (2,987.20 km) |
| Cascais to Samokov | 1,738.90 mi (2,798.48 km) |
| Cascais to Sandanski | 1,728.23 mi (2,781.31 km) |
| Cascais to Sevlievo | 1,815.78 mi (2,922.21 km) |
| Cascais to Shumen | 1,906.58 mi (3,068.34 km) |
| Cascais to Silistra | 1,920.60 mi (3,090.90 km) |
| Cascais to Sliven | 1,878.76 mi (3,023.56 km) |
