| Buffalo to Montalegre | 3,514.43 mi (5,655.93 km) |
| Buffalo to Montemor-o-Novo | 3,596.74 mi (5,788.39 km) |
| Buffalo to Montemor-o-Velho | 3,525.27 mi (5,673.38 km) |
| Buffalo to Montijo | 3,563.29 mi (5,734.56 km) |
| Buffalo to Mortagua | 3,537.77 mi (5,693.49 km) |
| Buffalo to Moura | 3,650.38 mi (5,874.71 km) |
| Buffalo to Murtosa | 3,509.60 mi (5,648.16 km) |
| Buffalo to Nazare | 3,525.49 mi (5,673.72 km) |
| Buffalo to Nelas | 3,552.96 mi (5,717.93 km) |
| Buffalo to Obidos | 3,529.02 mi (5,679.41 km) |
| Buffalo to Odemira | 3,612.79 mi (5,814.22 km) |
| Buffalo to Odivelas | 3,546.51 mi (5,707.56 km) |
| Buffalo to Oeiras | 3,543.54 mi (5,702.77 km) |
| Buffalo to Olhao | 3,669.69 mi (5,905.79 km) |
| Buffalo to Oliveira de Azemeis | 3,513.60 mi (5,654.60 km) |
