| Mortara to Somersworth (New Hampshire) | 3,774.41 mi (6,074.33 km) |
| Mortara to Somerton (Arizona) | 5,997.70 mi (9,652.36 km) |
| Mortara to Somerville (Massachusetts) | 3,815.40 mi (6,140.29 km) |
| Mortara to Somerville (New Jersey) | 4,036.24 mi (6,495.71 km) |
| Mortara to Sonoma (California) | 5,917.16 mi (9,522.75 km) |
| Mortara to Soquel (California) | 5,977.80 mi (9,620.35 km) |
| Mortara to South Bend (Indiana) | 4,475.35 mi (7,202.38 km) |
| Mortara to South Bradenton (Florida) | 4,958.22 mi (7,979.49 km) |
| Mortara to South Burlington (Vermont) | 3,828.80 mi (6,161.86 km) |
| Mortara to South Charleston (West Virginia) | 4,432.03 mi (7,132.66 km) |
| Mortara to South Daytona (Florida) | 4,808.26 mi (7,738.14 km) |
| Mortara to South El Monte (California) | 6,027.39 mi (9,700.15 km) |
| Mortara to South Elgin (Illinois) | 4,542.64 mi (7,310.67 km) |
| Mortara to South Euclid (Ohio) | 4,289.12 mi (6,902.68 km) |
| Mortara to South Farmingdale (New York) | 3,980.29 mi (6,405.65 km) |
