| Santo Tirso to Oak Harbor (Washington) | 5,059.53 mi (8,142.53 km) |
| Santo Tirso to Oak Hills (Oregon) | 5,200.35 mi (8,369.16 km) |
| Santo Tirso to Oak Lawn (Illinois) | 3,942.91 mi (6,345.50 km) |
| Santo Tirso to Oak Park (California) | 5,599.99 mi (9,012.32 km) |
| Santo Tirso to Oak Park (Illinois) | 3,938.89 mi (6,339.03 km) |
| Santo Tirso to Oak Park (Michigan) | 3,710.84 mi (5,972.02 km) |
| Santo Tirso to Oak Ridge (Florida) | 4,107.15 mi (6,609.81 km) |
| Santo Tirso to Oak Ridge (New Jersey) | 3,345.44 mi (5,383.97 km) |
| Santo Tirso to Oak Ridge (Tennessee) | 3,975.83 mi (6,398.49 km) |
| Santo Tirso to Oakdale (California) | 5,508.28 mi (8,864.71 km) |
| Santo Tirso to Oakdale (Minnesota) | 4,063.63 mi (6,539.78 km) |
| Santo Tirso to Oakland (California) | 5,559.33 mi (8,946.88 km) |
| Santo Tirso to Oakland (New Jersey) | 3,333.21 mi (5,364.28 km) |
| Santo Tirso to Oakland Park (Florida) | 4,131.40 mi (6,648.85 km) |
| Santo Tirso to Oakleaf Plantation (Florida) | 4,064.09 mi (6,540.53 km) |
