| Santo Tirso to Southern Pines (North Carolina) | 3,763.92 mi (6,057.45 km) |
| Santo Tirso to Southfield (Michigan) | 3,714.07 mi (5,977.21 km) |
| Santo Tirso to Southgate (Michigan) | 3,719.82 mi (5,986.48 km) |
| Santo Tirso to Southlake (Texas) | 4,702.06 mi (7,567.24 km) |
| Santo Tirso to Spanaway (Washington) | 5,110.47 mi (8,224.50 km) |
| Santo Tirso to Spanish Fork (Utah) | 5,034.54 mi (8,102.30 km) |
| Santo Tirso to Spanish Lake (Missouri) | 4,155.63 mi (6,687.84 km) |
| Santo Tirso to Spanish Springs (Nevada) | 5,371.08 mi (8,643.91 km) |
| Santo Tirso to Sparks (Nevada) | 5,376.87 mi (8,653.23 km) |
| Santo Tirso to Spartanburg (South Carolina) | 3,896.22 mi (6,270.37 km) |
| Santo Tirso to Spearfish (South Dakota) | 4,533.41 mi (7,295.82 km) |
| Santo Tirso to Speedway (Indiana) | 3,937.55 mi (6,336.87 km) |
| Santo Tirso to Spencer (Iowa) | 4,221.44 mi (6,793.76 km) |
| Santo Tirso to Spokane (Washington) | 4,912.71 mi (7,906.24 km) |
| Santo Tirso to Spokane Valley (Washington) | 4,905.98 mi (7,895.41 km) |
