| Isabela to Benavente | 3,730.79 mi (6,004.12 km) |
| Isabela to Bombarral | 3,713.63 mi (5,976.51 km) |
| Isabela to Bougado | 3,759.28 mi (6,049.98 km) |
| Isabela to Braga | 3,768.07 mi (6,064.12 km) |
| Isabela to Braganca | 3,855.15 mi (6,204.26 km) |
| Isabela to Cabeceiras de Basto | 3,788.67 mi (6,097.28 km) |
| Isabela to Cacem | 3,702.40 mi (5,958.44 km) |
| Isabela to Cadaval | 3,716.36 mi (5,980.90 km) |
| Isabela to Caldas da Rainha | 3,715.55 mi (5,979.60 km) |
| Isabela to Calheta | 3,226.32 mi (5,192.26 km) |
| Isabela to Camara de Lobos | 3,237.01 mi (5,209.47 km) |
| Isabela to Canico | 3,244.10 mi (5,220.88 km) |
| Isabela to Cantanhede | 3,750.34 mi (6,035.59 km) |
| Isabela to Carregal do Sal | 3,782.03 mi (6,086.60 km) |
| Isabela to Cartaxo | 3,732.75 mi (6,007.28 km) |
