| Oregon to Carmona | 4,008.81 mi (6,451.55 km) |
| Oregon to Cartagena | 4,221.57 mi (6,793.96 km) |
| Oregon to Cartama | 4,083.04 mi (6,571.02 km) |
| Oregon to Cartaya | 3,943.35 mi (6,346.21 km) |
| Oregon to Caspe | 4,133.44 mi (6,652.12 km) |
| Oregon to Cassa de la Selva | 4,238.28 mi (6,820.85 km) |
| Oregon to Castalla | 4,199.38 mi (6,758.25 km) |
| Oregon to Castellbisbal | 4,214.11 mi (6,781.95 km) |
| Oregon to Castelldefels | 4,221.00 mi (6,793.04 km) |
| Oregon to Castello de Ampurias | 4,233.60 mi (6,813.32 km) |
| Oregon to Castellon de la Plana | 4,178.13 mi (6,724.05 km) |
| Oregon to Castilleja de la Cuesta | 3,992.04 mi (6,424.56 km) |
| Oregon to Catarroja | 4,182.26 mi (6,730.70 km) |
| Oregon to Catral | 4,209.20 mi (6,774.04 km) |
| Oregon to Caudete | 4,180.91 mi (6,728.52 km) |
