| Santo Tirso to Somersworth (New Hampshire) | 3,116.72 mi (5,015.88 km) |
| Santo Tirso to Somerton (Arizona) | 5,505.93 mi (8,860.94 km) |
| Santo Tirso to Somerville (Massachusetts) | 3,147.83 mi (5,065.94 km) |
| Santo Tirso to Somerville (New Jersey) | 3,363.65 mi (5,413.27 km) |
| Santo Tirso to Sonoma (California) | 5,543.77 mi (8,921.83 km) |
| Santo Tirso to Soquel (California) | 5,588.32 mi (8,993.53 km) |
| Santo Tirso to South Bend (Indiana) | 3,876.66 mi (6,238.88 km) |
| Santo Tirso to South Bradenton (Florida) | 4,205.14 mi (6,767.52 km) |
| Santo Tirso to South Burlington (Vermont) | 3,197.44 mi (5,145.79 km) |
| Santo Tirso to South Charleston (West Virginia) | 3,771.68 mi (6,069.93 km) |
| Santo Tirso to South Daytona (Florida) | 4,060.04 mi (6,534.00 km) |
| Santo Tirso to South El Monte (California) | 5,577.17 mi (8,975.58 km) |
| Santo Tirso to South Elgin (Illinois) | 3,959.14 mi (6,371.62 km) |
| Santo Tirso to South Euclid (Ohio) | 3,662.78 mi (5,894.68 km) |
| Santo Tirso to South Farmingdale (New York) | 3,303.74 mi (5,316.86 km) |
