| Williamsport to Cascais | 3,491.63 mi (5,619.23 km) |
| Williamsport to Castelo Branco | 3,550.59 mi (5,714.13 km) |
| Williamsport to Castro Daire | 3,498.13 mi (5,629.70 km) |
| Williamsport to Celorico de Basto | 3,481.14 mi (5,602.35 km) |
| Williamsport to Chamusca | 3,517.32 mi (5,660.58 km) |
| Williamsport to Chaves | 3,495.91 mi (5,626.13 km) |
| Williamsport to Cinfaes | 3,482.90 mi (5,605.19 km) |
| Williamsport to Coimbra | 3,494.49 mi (5,623.84 km) |
| Williamsport to Condeixa-a-Nova | 3,493.86 mi (5,622.83 km) |
| Williamsport to Corroios | 3,507.11 mi (5,644.15 km) |
| Williamsport to Coruche | 3,527.01 mi (5,676.18 km) |
| Williamsport to Costa de Caparica | 3,502.09 mi (5,636.07 km) |
| Williamsport to Covilha | 3,536.73 mi (5,691.82 km) |
| Williamsport to Eiras | 3,493.84 mi (5,622.79 km) |
| Williamsport to Elvas | 3,596.21 mi (5,787.53 km) |
