| Key Largo to Benavente | 4,195.46 mi (6,751.94 km) |
| Key Largo to Bombarral | 4,173.16 mi (6,716.05 km) |
| Key Largo to Bougado | 4,181.42 mi (6,729.35 km) |
| Key Largo to Braga | 4,186.30 mi (6,737.19 km) |
| Key Largo to Braganca | 4,268.11 mi (6,868.86 km) |
| Key Largo to Cabeceiras de Basto | 4,207.09 mi (6,770.65 km) |
| Key Largo to Cacem | 4,170.85 mi (6,712.33 km) |
| Key Largo to Cadaval | 4,176.48 mi (6,721.39 km) |
| Key Largo to Caldas da Rainha | 4,172.60 mi (6,715.14 km) |
| Key Largo to Calheta | 3,805.81 mi (6,124.86 km) |
| Key Largo to Camara de Lobos | 3,816.92 mi (6,142.74 km) |
| Key Largo to Canico | 3,824.88 mi (6,155.54 km) |
| Key Largo to Cantanhede | 4,190.34 mi (6,743.71 km) |
| Key Largo to Carregal do Sal | 4,220.20 mi (6,791.75 km) |
| Key Largo to Cartaxo | 4,194.17 mi (6,749.86 km) |
