| Seaford to Benavente | 923.13 mi (1,485.63 km) |
| Seaford to Bombarral | 912.64 mi (1,468.75 km) |
| Seaford to Bougado | 771.59 mi (1,241.76 km) |
| Seaford to Braga | 755.22 mi (1,215.41 km) |
| Seaford to Braganca | 699.84 mi (1,126.28 km) |
| Seaford to Cabeceiras de Basto | 746.12 mi (1,200.77 km) |
| Seaford to Cacem | 947.12 mi (1,524.25 km) |
| Seaford to Cadaval | 913.48 mi (1,470.11 km) |
| Seaford to Caldas da Rainha | 903.57 mi (1,454.16 km) |
| Seaford to Calheta | 1,523.65 mi (2,452.08 km) |
| Seaford to Camara de Lobos | 1,520.05 mi (2,446.28 km) |
| Seaford to Canico | 1,519.63 mi (2,445.60 km) |
| Seaford to Cantanhede | 832.72 mi (1,340.14 km) |
| Seaford to Carregal do Sal | 813.35 mi (1,308.97 km) |
| Seaford to Cartaxo | 911.28 mi (1,466.57 km) |
