| Astoria to Cadiz | 5,531.51 mi (8,902.10 km) |
| Astoria to Calafell | 5,527.10 mi (8,895.01 km) |
| Astoria to Calahorra | 5,358.51 mi (8,623.69 km) |
| Astoria to Calasparra | 5,592.29 mi (8,999.92 km) |
| Astoria to Calatayud | 5,421.31 mi (8,724.76 km) |
| Astoria to Caldas de Montbuy | 5,520.28 mi (8,884.03 km) |
| Astoria to Caldas de Reyes | 5,128.94 mi (8,254.23 km) |
| Astoria to Calella | 5,535.73 mi (8,908.90 km) |
| Astoria to Callosa de Segura | 5,624.64 mi (9,051.98 km) |
| Astoria to Calpe | 5,624.60 mi (9,051.92 km) |
| Astoria to Calvia | 5,648.04 mi (9,089.64 km) |
| Astoria to Camas | 5,493.75 mi (8,841.34 km) |
| Astoria to Cambados | 5,128.97 mi (8,254.28 km) |
| Astoria to Cambre | 5,103.31 mi (8,212.99 km) |
| Astoria to Cambrils | 5,519.29 mi (8,882.44 km) |
