| Fitchburg to Sestu | 4,059.69 mi (6,533.44 km) |
| Fitchburg to Settimo Torinese | 3,800.17 mi (6,115.79 km) |
| Fitchburg to Seveso | 3,842.29 mi (6,183.57 km) |
| Fitchburg to Sezze | 4,156.46 mi (6,689.18 km) |
| Fitchburg to Siano | 4,253.75 mi (6,845.75 km) |
| Fitchburg to Siena | 4,015.40 mi (6,462.17 km) |
| Fitchburg to Signa | 3,989.15 mi (6,419.91 km) |
| Fitchburg to Silea | 3,975.37 mi (6,397.73 km) |
| Fitchburg to Silvi Paese | 4,163.31 mi (6,700.19 km) |
| Fitchburg to Sinalunga | 4,036.37 mi (6,495.92 km) |
| Fitchburg to Siniscola | 4,040.89 mi (6,503.19 km) |
| Fitchburg to Sinnai | 4,064.63 mi (6,541.39 km) |
| Fitchburg to Siracusa | 4,425.25 mi (7,121.75 km) |
| Fitchburg to Solaro | 3,840.94 mi (6,181.40 km) |
| Fitchburg to Soliera | 3,948.71 mi (6,354.83 km) |
