| Butte to Montalegre | 4,820.41 mi (7,757.69 km) |
| Butte to Montemor-o-Novo | 4,958.12 mi (7,979.32 km) |
| Butte to Montemor-o-Velho | 4,866.89 mi (7,832.50 km) |
| Butte to Montijo | 4,930.28 mi (7,934.51 km) |
| Butte to Mortagua | 4,871.00 mi (7,839.12 km) |
| Butte to Moura | 5,012.72 mi (8,067.19 km) |
| Butte to Murtosa | 4,841.50 mi (7,791.64 km) |
| Butte to Nazare | 4,879.62 mi (7,852.99 km) |
| Butte to Nelas | 4,881.35 mi (7,855.77 km) |
| Butte to Obidos | 4,887.79 mi (7,866.13 km) |
| Butte to Odemira | 4,994.02 mi (8,037.10 km) |
| Butte to Odivelas | 4,914.33 mi (7,908.86 km) |
| Butte to Oeiras | 4,914.22 mi (7,908.67 km) |
| Butte to Olhao | 5,052.03 mi (8,130.46 km) |
| Butte to Oliveira de Azemeis | 4,842.31 mi (7,792.95 km) |
