| Santurce-Antiguo to Castelfidardo | 830.93 mi (1,337.25 km) |
| Santurce-Antiguo to Castelfiorentino | 701.39 mi (1,128.77 km) |
| Santurce-Antiguo to Castelfranco di Sopra | 730.83 mi (1,176.16 km) |
| Santurce-Antiguo to Castelfranco di Sotto | 690.21 mi (1,110.78 km) |
| Santurce-Antiguo to Castelfranco Emilia | 704.98 mi (1,134.56 km) |
| Santurce-Antiguo to Castelfranco Veneto | 753.75 mi (1,213.04 km) |
| Santurce-Antiguo to Castellabate | 947.93 mi (1,525.54 km) |
| Santurce-Antiguo to Castellammare del Golfo | 908.83 mi (1,462.62 km) |
| Santurce-Antiguo to Castellammare di Stabia | 915.43 mi (1,473.25 km) |
| Santurce-Antiguo to Castellamonte | 548.88 mi (883.34 km) |
| Santurce-Antiguo to Castellana Grotte | 1,046.41 mi (1,684.03 km) |
| Santurce-Antiguo to Castellaneta | 1,039.58 mi (1,673.05 km) |
| Santurce-Antiguo to Castellanza | 608.45 mi (979.20 km) |
| Santurce-Antiguo to Castellarano | 691.65 mi (1,113.10 km) |
| Santurce-Antiguo to Castelleone | 646.10 mi (1,039.80 km) |
