| Somersworth to Sestu | 3,997.25 mi (6,432.96 km) |
| Somersworth to Settimo Torinese | 3,736.09 mi (6,012.66 km) |
| Somersworth to Seveso | 3,777.95 mi (6,080.02 km) |
| Somersworth to Sezze | 4,092.76 mi (6,586.65 km) |
| Somersworth to Siano | 4,190.01 mi (6,743.18 km) |
| Somersworth to Siena | 3,951.42 mi (6,359.20 km) |
| Somersworth to Signa | 3,925.07 mi (6,316.79 km) |
| Somersworth to Silea | 3,910.75 mi (6,293.74 km) |
| Somersworth to Silvi Paese | 4,099.20 mi (6,597.03 km) |
| Somersworth to Sinalunga | 3,972.37 mi (6,392.92 km) |
| Somersworth to Siniscola | 3,977.93 mi (6,401.86 km) |
| Somersworth to Sinnai | 4,002.18 mi (6,440.88 km) |
| Somersworth to Siracusa | 4,362.49 mi (7,020.74 km) |
| Somersworth to Solaro | 3,776.61 mi (6,077.87 km) |
| Somersworth to Soliera | 3,884.41 mi (6,251.36 km) |
