| Williamsport to Castelletto sopra Ticino | 4,092.53 mi (6,586.28 km) |
| Williamsport to Castelli Calepio | 4,148.55 mi (6,676.45 km) |
| Williamsport to Castelnovo ne' Monti | 4,211.51 mi (6,777.77 km) |
| Williamsport to Castelnuovo Berardenga | 4,297.47 mi (6,916.11 km) |
| Williamsport to Castelnuovo di Porto | 4,385.01 mi (7,056.99 km) |
| Williamsport to Castelnuovo di Verona | 4,191.76 mi (6,745.98 km) |
| Williamsport to Castelnuovo Rangone | 4,229.94 mi (6,807.42 km) |
| Williamsport to Castelvetrano | 4,568.81 mi (7,352.79 km) |
| Williamsport to Castelvetro di Modena | 4,232.42 mi (6,811.42 km) |
| Williamsport to Castenaso | 4,254.03 mi (6,846.20 km) |
| Williamsport to Castenedolo | 4,170.80 mi (6,712.26 km) |
| Williamsport to Castiglion Fiorentino | 4,315.28 mi (6,944.77 km) |
| Williamsport to Castiglione del Lago | 4,328.31 mi (6,965.74 km) |
| Williamsport to Castiglione delle Stiviere | 4,181.77 mi (6,729.90 km) |
| Williamsport to Castrolibero | 4,654.59 mi (7,490.83 km) |
