| Petersburg to Montalegre | 3,620.70 mi (5,826.95 km) |
| Petersburg to Montemor-o-Novo | 3,676.90 mi (5,917.40 km) |
| Petersburg to Montemor-o-Velho | 3,616.08 mi (5,819.52 km) |
| Petersburg to Montijo | 3,641.76 mi (5,860.85 km) |
| Petersburg to Mortagua | 3,631.90 mi (5,844.98 km) |
| Petersburg to Moura | 3,728.76 mi (6,000.87 km) |
| Petersburg to Murtosa | 3,605.05 mi (5,801.76 km) |
| Petersburg to Nazare | 3,610.74 mi (5,810.93 km) |
| Petersburg to Nelas | 3,648.77 mi (5,872.12 km) |
| Petersburg to Obidos | 3,612.10 mi (5,813.12 km) |
| Petersburg to Odemira | 3,683.42 mi (5,927.89 km) |
| Petersburg to Odivelas | 3,625.03 mi (5,833.92 km) |
| Petersburg to Oeiras | 3,620.81 mi (5,827.14 km) |
| Petersburg to Olhao | 3,738.40 mi (6,016.37 km) |
| Petersburg to Oliveira de Azemeis | 3,610.31 mi (5,810.24 km) |
