| Oakland to Cascais | 5,645.80 mi (9,086.04 km) |
| Oakland to Castelo Branco | 5,668.03 mi (9,121.82 km) |
| Oakland to Castro Daire | 5,600.05 mi (9,012.42 km) |
| Oakland to Celorico de Basto | 5,574.69 mi (8,971.60 km) |
| Oakland to Chamusca | 5,652.03 mi (9,096.06 km) |
| Oakland to Chaves | 5,577.70 mi (8,976.45 km) |
| Oakland to Cinfaes | 5,583.00 mi (8,984.97 km) |
| Oakland to Coimbra | 5,613.55 mi (9,034.13 km) |
| Oakland to Condeixa-a-Nova | 5,615.26 mi (9,036.88 km) |
| Oakland to Corroios | 5,660.34 mi (9,109.44 km) |
| Oakland to Coruche | 5,668.86 mi (9,123.15 km) |
| Oakland to Costa de Caparica | 5,655.58 mi (9,101.77 km) |
| Oakland to Covilha | 5,645.83 mi (9,086.09 km) |
| Oakland to Eiras | 5,612.29 mi (9,032.11 km) |
| Oakland to Elvas | 5,726.89 mi (9,216.55 km) |
