| Slidell to Cascais | 4,466.98 mi (7,188.91 km) |
| Slidell to Castelo Branco | 4,537.23 mi (7,301.97 km) |
| Slidell to Castro Daire | 4,490.46 mi (7,226.70 km) |
| Slidell to Celorico de Basto | 4,476.16 mi (7,203.69 km) |
| Slidell to Chamusca | 4,499.01 mi (7,240.46 km) |
| Slidell to Chaves | 4,493.84 mi (7,232.14 km) |
| Slidell to Cinfaes | 4,476.05 mi (7,203.51 km) |
| Slidell to Coimbra | 4,481.74 mi (7,212.67 km) |
| Slidell to Condeixa-a-Nova | 4,480.39 mi (7,210.49 km) |
| Slidell to Corroios | 4,482.48 mi (7,213.85 km) |
| Slidell to Coruche | 4,506.05 mi (7,251.78 km) |
| Slidell to Costa de Caparica | 4,477.47 mi (7,205.79 km) |
| Slidell to Covilha | 4,526.20 mi (7,284.22 km) |
| Slidell to Eiras | 4,481.29 mi (7,211.94 km) |
| Slidell to Elvas | 4,577.63 mi (7,366.99 km) |
