| Houston to Casamassima | 5,914.11 mi (9,517.83 km) |
| Houston to Casandrino | 5,801.52 mi (9,336.65 km) |
| Houston to Casapulla | 5,797.70 mi (9,330.50 km) |
| Houston to Casarano | 6,005.33 mi (9,664.64 km) |
| Houston to Casatenovo | 5,414.41 mi (8,713.65 km) |
| Houston to Casciana Terme | 5,547.75 mi (8,928.24 km) |
| Houston to Cascina | 5,539.11 mi (8,914.34 km) |
| Houston to Caselle Torinese | 5,363.14 mi (8,631.14 km) |
| Houston to Caserta | 5,799.84 mi (9,333.94 km) |
| Houston to Casier | 5,538.55 mi (8,913.44 km) |
| Houston to Casorate Primo | 5,415.72 mi (8,715.76 km) |
| Houston to Casoria | 5,804.98 mi (9,342.21 km) |
| Houston to Cassano al Ionio | 5,936.24 mi (9,553.46 km) |
| Houston to Cassano d'Adda | 5,428.78 mi (8,736.78 km) |
| Houston to Cassano delle Murge | 5,910.53 mi (9,512.07 km) |
