| Oskaloosa to Cascais | 4,228.36 mi (6,804.89 km) |
| Oskaloosa to Castelo Branco | 4,274.93 mi (6,879.83 km) |
| Oskaloosa to Castro Daire | 4,216.31 mi (6,785.50 km) |
| Oskaloosa to Celorico de Basto | 4,196.10 mi (6,752.97 km) |
| Oskaloosa to Chamusca | 4,247.43 mi (6,835.57 km) |
| Oskaloosa to Chaves | 4,206.81 mi (6,770.21 km) |
| Oskaloosa to Cinfaes | 4,200.24 mi (6,759.64 km) |
| Oskaloosa to Coimbra | 4,218.77 mi (6,789.46 km) |
| Oskaloosa to Condeixa-a-Nova | 4,218.97 mi (6,789.78 km) |
| Oskaloosa to Corroios | 4,243.67 mi (6,829.52 km) |
| Oskaloosa to Coruche | 4,259.75 mi (6,855.40 km) |
| Oskaloosa to Costa de Caparica | 4,238.69 mi (6,821.51 km) |
| Oskaloosa to Covilha | 4,257.94 mi (6,852.49 km) |
| Oskaloosa to Eiras | 4,217.89 mi (6,788.04 km) |
| Oskaloosa to Elvas | 4,325.73 mi (6,961.58 km) |
