| South Houston to Cassina de' Pecchi | 5,422.75 mi (8,727.07 km) |
| South Houston to Cassino | 5,760.69 mi (9,270.94 km) |
| South Houston to Castagneto Carducci | 5,559.48 mi (8,947.12 km) |
| South Houston to Castano Primo | 5,396.60 mi (8,684.99 km) |
| South Houston to Castel Bolognese | 5,567.61 mi (8,960.20 km) |
| South Houston to Castel Gandolfo | 5,700.52 mi (9,174.09 km) |
| South Houston to Castel Goffredo | 5,476.54 mi (8,813.64 km) |
| South Houston to Castel Maggiore | 5,540.30 mi (8,916.25 km) |
| South Houston to Castel Mella | 5,455.81 mi (8,780.28 km) |
| South Houston to Castel San Giorgio | 5,825.91 mi (9,375.90 km) |
| South Houston to Castel San Giovanni | 5,442.11 mi (8,758.23 km) |
| South Houston to Castel San Pietro Terme | 5,555.49 mi (8,940.69 km) |
| South Houston to Castel Volturno | 5,781.78 mi (9,304.88 km) |
| South Houston to Castelbuono | 5,911.81 mi (9,514.14 km) |
| South Houston to Casteldaccia | 5,881.81 mi (9,465.86 km) |
