| Houston to Benavente | 4,792.07 mi (7,712.09 km) |
| Houston to Bombarral | 4,766.59 mi (7,671.09 km) |
| Houston to Bougado | 4,742.91 mi (7,632.98 km) |
| Houston to Braga | 4,744.21 mi (7,635.07 km) |
| Houston to Braganca | 4,817.12 mi (7,752.41 km) |
| Houston to Cabeceiras de Basto | 4,764.03 mi (7,666.97 km) |
| Houston to Cacem | 4,771.85 mi (7,679.55 km) |
| Houston to Cadaval | 4,770.24 mi (7,676.95 km) |
| Houston to Caldas da Rainha | 4,763.98 mi (7,666.88 km) |
| Houston to Calheta | 4,513.03 mi (7,263.02 km) |
| Houston to Camara de Lobos | 4,523.98 mi (7,280.64 km) |
| Houston to Canico | 4,532.25 mi (7,293.95 km) |
| Houston to Cantanhede | 4,766.48 mi (7,670.91 km) |
| Houston to Carregal do Sal | 4,793.22 mi (7,713.94 km) |
| Houston to Cartaxo | 4,788.12 mi (7,705.73 km) |
