| South Houston to Carmignano | 5,553.29 mi (8,937.16 km) |
| South Houston to Carovigno | 5,955.34 mi (9,584.19 km) |
| South Houston to Carpenedolo | 5,472.34 mi (8,806.88 km) |
| South Houston to Carpi | 5,512.23 mi (8,871.07 km) |
| South Houston to Carrara | 5,505.00 mi (8,859.43 km) |
| South Houston to Carugate | 5,420.18 mi (8,722.94 km) |
| South Houston to Casal di Principe | 5,792.40 mi (9,321.96 km) |
| South Houston to Casale Monferrato | 5,398.24 mi (8,687.63 km) |
| South Houston to Casale sul Sile | 5,541.64 mi (8,918.41 km) |
| South Houston to Casalecchio di Reno | 5,539.91 mi (8,915.62 km) |
| South Houston to Casalgrande | 5,513.29 mi (8,872.78 km) |
| South Houston to Casalmaggiore | 5,485.36 mi (8,827.83 km) |
| South Houston to Casalnuovo di Napoli | 5,805.63 mi (9,343.25 km) |
| South Houston to Casalpusterlengo | 5,446.60 mi (8,765.46 km) |
| South Houston to Casaluce | 5,795.92 mi (9,327.63 km) |
