| Imperial Beach to Montalegre | 5,617.82 mi (9,041.00 km) |
| Imperial Beach to Montemor-o-Novo | 5,730.20 mi (9,221.86 km) |
| Imperial Beach to Montemor-o-Velho | 5,648.04 mi (9,089.65 km) |
| Imperial Beach to Montijo | 5,699.14 mi (9,171.88 km) |
| Imperial Beach to Mortagua | 5,656.29 mi (9,102.91 km) |
| Imperial Beach to Moura | 5,784.83 mi (9,309.78 km) |
| Imperial Beach to Murtosa | 5,627.11 mi (9,055.95 km) |
| Imperial Beach to Nazare | 5,654.64 mi (9,100.26 km) |
| Imperial Beach to Nelas | 5,669.07 mi (9,123.48 km) |
| Imperial Beach to Obidos | 5,660.52 mi (9,109.72 km) |
| Imperial Beach to Odemira | 5,755.80 mi (9,263.07 km) |
| Imperial Beach to Odivelas | 5,682.60 mi (9,145.27 km) |
| Imperial Beach to Oeiras | 5,680.97 mi (9,142.63 km) |
| Imperial Beach to Olhao | 5,813.72 mi (9,356.29 km) |
| Imperial Beach to Oliveira de Azemeis | 5,629.45 mi (9,059.73 km) |
