| Opelika to Benavente | 4,185.10 mi (6,735.27 km) |
| Opelika to Bombarral | 4,160.14 mi (6,695.10 km) |
| Opelika to Bougado | 4,142.87 mi (6,667.31 km) |
| Opelika to Braga | 4,144.96 mi (6,670.66 km) |
| Opelika to Braganca | 4,220.17 mi (6,791.71 km) |
| Opelika to Cabeceiras de Basto | 4,165.08 mi (6,703.04 km) |
| Opelika to Cacem | 4,164.00 mi (6,701.31 km) |
| Opelika to Cadaval | 4,163.73 mi (6,700.88 km) |
| Opelika to Caldas da Rainha | 4,157.90 mi (6,691.50 km) |
| Opelika to Calheta | 3,890.89 mi (6,261.78 km) |
| Opelika to Camara de Lobos | 3,901.86 mi (6,279.44 km) |
| Opelika to Canico | 3,910.12 mi (6,292.73 km) |
| Opelika to Cantanhede | 4,163.45 mi (6,700.42 km) |
| Opelika to Carregal do Sal | 4,190.94 mi (6,744.66 km) |
| Opelika to Cartaxo | 4,181.64 mi (6,729.70 km) |
