| Preakness to Cascais | 3,361.50 mi (5,409.82 km) |
| Preakness to Castelo Branco | 3,423.19 mi (5,509.08 km) |
| Preakness to Castro Daire | 3,372.20 mi (5,427.03 km) |
| Preakness to Celorico de Basto | 3,355.96 mi (5,400.90 km) |
| Preakness to Chamusca | 3,388.66 mi (5,453.53 km) |
| Preakness to Chaves | 3,371.62 mi (5,426.11 km) |
| Preakness to Cinfaes | 3,357.19 mi (5,402.88 km) |
| Preakness to Coimbra | 3,367.19 mi (5,418.97 km) |
| Preakness to Condeixa-a-Nova | 3,366.38 mi (5,417.66 km) |
| Preakness to Corroios | 3,377.00 mi (5,434.76 km) |
| Preakness to Coruche | 3,397.74 mi (5,468.14 km) |
| Preakness to Costa de Caparica | 3,371.98 mi (5,426.68 km) |
| Preakness to Covilha | 3,410.05 mi (5,487.95 km) |
| Preakness to Eiras | 3,366.59 mi (5,418.00 km) |
| Preakness to Elvas | 3,467.56 mi (5,580.50 km) |
