| Santo Tirso to Ukiah (California) | 5,529.29 mi (8,898.53 km) |
| Santo Tirso to Union (Missouri) | 4,204.35 mi (6,766.25 km) |
| Santo Tirso to Union City (California) | 5,561.03 mi (8,949.62 km) |
| Santo Tirso to Union City (Georgia) | 4,073.35 mi (6,555.43 km) |
| Santo Tirso to Union City (New Jersey) | 3,330.47 mi (5,359.87 km) |
| Santo Tirso to Union City (Tennessee) | 4,186.43 mi (6,737.40 km) |
| Santo Tirso to Union Hill-Novelty Hill (Washington) | 5,069.23 mi (8,158.13 km) |
| Santo Tirso to Union Park (Florida) | 4,094.42 mi (6,589.33 km) |
| Santo Tirso to Uniondale (New York) | 3,310.83 mi (5,328.26 km) |
| Santo Tirso to Universal City (Texas) | 4,897.31 mi (7,881.45 km) |
| Santo Tirso to University (Florida) | 4,173.77 mi (6,717.04 km) |
| Santo Tirso to University City (Missouri) | 4,165.72 mi (6,704.08 km) |
| Santo Tirso to University Heights (Ohio) | 3,664.15 mi (5,896.88 km) |
| Santo Tirso to University of California-Santa Barbara (California) | 5,632.96 mi (9,065.37 km) |
| Santo Tirso to University Park (Texas) | 4,689.52 mi (7,547.06 km) |
