| Somersworth to Castelletto sopra Ticino | 3,754.12 mi (6,041.68 km) |
| Somersworth to Castelli Calepio | 3,810.62 mi (6,132.59 km) |
| Somersworth to Castelnovo ne' Monti | 3,872.49 mi (6,232.17 km) |
| Somersworth to Castelnuovo Berardenga | 3,957.85 mi (6,369.55 km) |
| Somersworth to Castelnuovo di Porto | 4,044.72 mi (6,509.35 km) |
| Somersworth to Castelnuovo di Verona | 3,853.99 mi (6,202.39 km) |
| Somersworth to Castelnuovo Rangone | 3,891.27 mi (6,262.39 km) |
| Somersworth to Castelvetrano | 4,225.86 mi (6,800.86 km) |
| Somersworth to Castelvetro di Modena | 3,893.71 mi (6,266.32 km) |
| Somersworth to Castenaso | 3,915.56 mi (6,301.49 km) |
| Somersworth to Castenedolo | 3,832.86 mi (6,168.39 km) |
| Somersworth to Castiglion Fiorentino | 3,975.83 mi (6,398.48 km) |
| Somersworth to Castiglione del Lago | 3,988.73 mi (6,419.23 km) |
| Somersworth to Castiglione delle Stiviere | 3,843.84 mi (6,186.06 km) |
| Somersworth to Castrolibero | 4,313.58 mi (6,942.03 km) |
