| Gurnee to Cascais | 3,978.51 mi (6,402.79 km) |
| Gurnee to Castelo Branco | 4,026.65 mi (6,480.27 km) |
| Gurnee to Castro Daire | 3,968.83 mi (6,387.21 km) |
| Gurnee to Celorico de Basto | 3,949.05 mi (6,355.38 km) |
| Gurnee to Chamusca | 3,998.39 mi (6,434.78 km) |
| Gurnee to Chaves | 3,960.35 mi (6,373.57 km) |
| Gurnee to Cinfaes | 3,952.86 mi (6,361.51 km) |
| Gurnee to Coimbra | 3,970.47 mi (6,389.85 km) |
| Gurnee to Condeixa-a-Nova | 3,970.56 mi (6,389.99 km) |
| Gurnee to Corroios | 3,993.84 mi (6,427.46 km) |
| Gurnee to Coruche | 4,010.39 mi (6,454.10 km) |
| Gurnee to Costa de Caparica | 3,988.85 mi (6,419.44 km) |
| Gurnee to Covilha | 4,010.07 mi (6,453.59 km) |
| Gurnee to Eiras | 3,969.62 mi (6,388.48 km) |
| Gurnee to Elvas | 4,076.81 mi (6,560.99 km) |
