| Astoria to Cocentaina | 5,603.74 mi (9,018.34 km) |
| Astoria to Coin | 5,577.43 mi (8,976.01 km) |
| Astoria to Colindres | 5,252.70 mi (8,453.41 km) |
| Astoria to Collado-Villalba | 5,385.59 mi (8,667.28 km) |
| Astoria to Colmenar Viejo | 5,392.00 mi (8,677.58 km) |
| Astoria to Colmenarejo | 5,389.27 mi (8,673.19 km) |
| Astoria to Conil de la Frontera | 5,553.43 mi (8,937.38 km) |
| Astoria to Consuegra | 5,462.62 mi (8,791.23 km) |
| Astoria to Corbera de Llobregat | 5,525.58 mi (8,892.56 km) |
| Astoria to Cordoba | 5,510.03 mi (8,867.54 km) |
| Astoria to Coria del Rio | 5,499.59 mi (8,850.74 km) |
| Astoria to Crevillente | 5,619.84 mi (9,044.27 km) |
| Astoria to Cuarte de Huerva | 5,430.46 mi (8,739.48 km) |
| Astoria to Cubellas | 5,529.66 mi (8,899.13 km) |
| Astoria to Cuellar | 5,334.02 mi (8,584.27 km) |
