| Mortara to Southern Pines (North Carolina) | 4,468.25 mi (7,190.95 km) |
| Mortara to Southfield (Michigan) | 4,320.05 mi (6,952.45 km) |
| Mortara to Southgate (Michigan) | 4,329.29 mi (6,967.31 km) |
| Mortara to Southlake (Texas) | 5,322.10 mi (8,565.09 km) |
| Mortara to Spanaway (Washington) | 5,402.23 mi (8,694.05 km) |
| Mortara to Spanish Fork (Utah) | 5,481.17 mi (8,821.09 km) |
| Mortara to Spanish Lake (Missouri) | 4,762.85 mi (7,665.07 km) |
| Mortara to Spanish Springs (Nevada) | 5,756.47 mi (9,264.14 km) |
| Mortara to Sparks (Nevada) | 5,762.63 mi (9,274.06 km) |
| Mortara to Spartanburg (South Carolina) | 4,589.39 mi (7,385.91 km) |
| Mortara to Spearfish (South Dakota) | 4,991.53 mi (8,033.10 km) |
| Mortara to Speedway (Indiana) | 4,557.24 mi (7,334.18 km) |
| Mortara to Spencer (Iowa) | 4,750.96 mi (7,645.93 km) |
| Mortara to Spokane (Washington) | 5,238.11 mi (8,429.92 km) |
| Mortara to Spokane Valley (Washington) | 5,232.94 mi (8,421.61 km) |
