| Austin to Cocentaina | 5,299.39 mi (8,528.54 km) |
| Austin to Coin | 5,156.58 mi (8,298.71 km) |
| Austin to Colindres | 5,014.03 mi (8,069.30 km) |
| Austin to Collado-Villalba | 5,071.08 mi (8,161.12 km) |
| Austin to Colmenar Viejo | 5,081.73 mi (8,178.25 km) |
| Austin to Colmenarejo | 5,072.87 mi (8,164.00 km) |
| Austin to Conil de la Frontera | 5,102.42 mi (8,211.56 km) |
| Austin to Consuegra | 5,125.92 mi (8,249.38 km) |
| Austin to Corbera de Llobregat | 5,320.56 mi (8,562.62 km) |
| Austin to Cordoba | 5,117.66 mi (8,236.08 km) |
| Austin to Coria del Rio | 5,073.38 mi (8,164.82 km) |
| Austin to Crevillente | 5,298.12 mi (8,526.50 km) |
| Austin to Cuarte de Huerva | 5,185.35 mi (8,345.02 km) |
| Austin to Cubellas | 5,315.82 mi (8,554.99 km) |
| Austin to Cuellar | 5,033.68 mi (8,100.93 km) |
