| Opfikon to Benavente | 1,048.56 mi (1,687.50 km) |
| Opfikon to Bombarral | 1,050.31 mi (1,690.31 km) |
| Opfikon to Bougado | 941.96 mi (1,515.93 km) |
| Opfikon to Braga | 928.04 mi (1,493.54 km) |
| Opfikon to Braganca | 846.01 mi (1,361.52 km) |
| Opfikon to Cabeceiras de Basto | 910.96 mi (1,466.05 km) |
| Opfikon to Cacem | 1,078.28 mi (1,735.32 km) |
| Opfikon to Cadaval | 1,049.48 mi (1,688.98 km) |
| Opfikon to Caldas da Rainha | 1,043.57 mi (1,679.46 km) |
| Opfikon to Calheta | 1,684.76 mi (2,711.36 km) |
| Opfikon to Camara de Lobos | 1,678.50 mi (2,701.28 km) |
| Opfikon to Canico | 1,675.88 mi (2,697.06 km) |
| Opfikon to Cantanhede | 981.73 mi (1,579.95 km) |
| Opfikon to Carregal do Sal | 952.85 mi (1,533.47 km) |
| Opfikon to Cartaxo | 1,039.85 mi (1,673.48 km) |
