| Oregon to Cadiz | 4,010.17 mi (6,453.74 km) |
| Oregon to Calafell | 4,205.86 mi (6,768.68 km) |
| Oregon to Calahorra | 4,010.27 mi (6,453.90 km) |
| Oregon to Calasparra | 4,165.31 mi (6,703.42 km) |
| Oregon to Calatayud | 4,057.75 mi (6,530.32 km) |
| Oregon to Caldas de Montbuy | 4,216.61 mi (6,785.98 km) |
| Oregon to Caldas de Reyes | 3,699.86 mi (5,954.35 km) |
| Oregon to Calella | 4,239.01 mi (6,822.03 km) |
| Oregon to Callosa de Segura | 4,207.10 mi (6,770.68 km) |
| Oregon to Calpe | 4,230.35 mi (6,808.08 km) |
| Oregon to Calvia | 4,307.67 mi (6,932.53 km) |
| Oregon to Camas | 3,992.17 mi (6,424.78 km) |
| Oregon to Cambados | 3,695.63 mi (5,947.54 km) |
| Oregon to Cambre | 3,693.01 mi (5,943.32 km) |
| Oregon to Cambrils | 4,187.91 mi (6,739.79 km) |
