| Boston to Castelletto sopra Ticino | 634.05 mi (1,020.40 km) |
| Boston to Castelli Calepio | 674.81 mi (1,086.00 km) |
| Boston to Castelnovo ne' Monti | 756.07 mi (1,216.78 km) |
| Boston to Castelnuovo Berardenga | 849.06 mi (1,366.43 km) |
| Boston to Castelnuovo di Porto | 946.86 mi (1,523.82 km) |
| Boston to Castelnuovo di Verona | 711.70 mi (1,145.37 km) |
| Boston to Castelnuovo Rangone | 764.91 mi (1,231.00 km) |
| Boston to Castelvetrano | 1,222.05 mi (1,966.70 km) |
| Boston to Castelvetro di Modena | 768.17 mi (1,236.25 km) |
| Boston to Castenaso | 783.09 mi (1,260.27 km) |
| Boston to Castenedolo | 695.48 mi (1,119.27 km) |
| Boston to Castiglion Fiorentino | 861.16 mi (1,385.90 km) |
| Boston to Castiglione del Lago | 876.49 mi (1,410.58 km) |
| Boston to Castiglione delle Stiviere | 705.40 mi (1,135.24 km) |
| Boston to Castrolibero | 1,216.20 mi (1,957.29 km) |
