| Oregon to Collegno | 4,320.17 mi (6,952.65 km) |
| Oregon to Cologno al Serio | 4,387.69 mi (7,061.31 km) |
| Oregon to Cologno Monzese | 4,372.75 mi (7,037.25 km) |
| Oregon to Colorno | 4,440.30 mi (7,145.98 km) |
| Oregon to Comacchio | 4,522.04 mi (7,277.52 km) |
| Oregon to Comiso | 4,945.31 mi (7,958.70 km) |
| Oregon to Como | 4,354.32 mi (7,007.60 km) |
| Oregon to Concordia Sagittaria | 4,506.15 mi (7,251.95 km) |
| Oregon to Concorezzo | 4,372.75 mi (7,037.27 km) |
| Oregon to Conegliano | 4,479.59 mi (7,209.20 km) |
| Oregon to Conselice | 4,515.24 mi (7,266.57 km) |
| Oregon to Conselve | 4,488.23 mi (7,223.11 km) |
| Oregon to Conversano | 4,876.81 mi (7,848.46 km) |
| Oregon to Copertino | 4,945.30 mi (7,958.70 km) |
| Oregon to Copparo | 4,500.06 mi (7,242.14 km) |
