| Sulphur Springs to Montalegre | 4,639.70 mi (7,466.88 km) |
| Sulphur Springs to Montemor-o-Novo | 4,712.99 mi (7,584.83 km) |
| Sulphur Springs to Montemor-o-Velho | 4,645.63 mi (7,476.41 km) |
| Sulphur Springs to Montijo | 4,678.74 mi (7,529.71 km) |
| Sulphur Springs to Mortagua | 4,659.33 mi (7,498.47 km) |
| Sulphur Springs to Moura | 4,765.96 mi (7,670.07 km) |
| Sulphur Springs to Murtosa | 4,631.56 mi (7,453.78 km) |
| Sulphur Springs to Nazare | 4,643.71 mi (7,473.34 km) |
| Sulphur Springs to Nelas | 4,675.11 mi (7,523.87 km) |
| Sulphur Springs to Obidos | 4,646.37 mi (7,477.61 km) |
| Sulphur Springs to Odemira | 4,724.72 mi (7,603.69 km) |
| Sulphur Springs to Odivelas | 4,661.96 mi (7,502.69 km) |
| Sulphur Springs to Oeiras | 4,658.42 mi (7,497.01 km) |
| Sulphur Springs to Olhao | 4,780.79 mi (7,693.93 km) |
| Sulphur Springs to Oliveira de Azemeis | 4,635.99 mi (7,460.91 km) |
