| Smithville to Montalegre | 4,346.14 mi (6,994.44 km) |
| Smithville to Montemor-o-Novo | 4,438.13 mi (7,142.48 km) |
| Smithville to Montemor-o-Velho | 4,363.26 mi (7,021.99 km) |
| Smithville to Montijo | 4,405.33 mi (7,089.69 km) |
| Smithville to Mortagua | 4,374.45 mi (7,040.00 km) |
| Smithville to Moura | 4,492.16 mi (7,229.43 km) |
| Smithville to Murtosa | 4,345.89 mi (6,994.03 km) |
| Smithville to Nazare | 4,365.44 mi (7,025.50 km) |
| Smithville to Nelas | 4,388.91 mi (7,063.28 km) |
| Smithville to Obidos | 4,369.69 mi (7,032.34 km) |
| Smithville to Odemira | 4,456.96 mi (7,172.78 km) |
| Smithville to Odivelas | 4,388.59 mi (7,062.75 km) |
| Smithville to Oeiras | 4,386.00 mi (7,058.58 km) |
| Smithville to Olhao | 4,514.22 mi (7,264.94 km) |
| Smithville to Oliveira de Azemeis | 4,349.37 mi (6,999.64 km) |
