| Philadelphia to Castelletto sopra Ticino | 4,061.40 mi (6,536.19 km) |
| Philadelphia to Castelli Calepio | 4,118.33 mi (6,627.81 km) |
| Philadelphia to Castelnovo ne' Monti | 4,179.05 mi (6,725.53 km) |
| Philadelphia to Castelnuovo Berardenga | 4,263.65 mi (6,861.69 km) |
| Philadelphia to Castelnuovo di Porto | 4,349.55 mi (6,999.93 km) |
| Philadelphia to Castelnuovo di Verona | 4,161.85 mi (6,697.84 km) |
| Philadelphia to Castelnuovo Rangone | 4,198.21 mi (6,756.37 km) |
| Philadelphia to Castelvetrano | 4,524.61 mi (7,281.65 km) |
| Philadelphia to Castelvetro di Modena | 4,200.60 mi (6,760.22 km) |
| Philadelphia to Castenaso | 4,222.71 mi (6,795.79 km) |
| Philadelphia to Castenedolo | 4,140.56 mi (6,663.59 km) |
| Philadelphia to Castiglion Fiorentino | 4,281.84 mi (6,890.96 km) |
| Philadelphia to Castiglione del Lago | 4,294.55 mi (6,911.42 km) |
| Philadelphia to Castiglione delle Stiviere | 4,151.54 mi (6,681.27 km) |
| Philadelphia to Castrolibero | 4,617.14 mi (7,430.57 km) |
