| Des Moines to Montalegre | 4,222.26 mi (6,795.07 km) |
| Des Moines to Montemor-o-Novo | 4,320.07 mi (6,952.48 km) |
| Des Moines to Montemor-o-Velho | 4,242.93 mi (6,828.33 km) |
| Des Moines to Montijo | 4,287.80 mi (6,900.54 km) |
| Des Moines to Mortagua | 4,253.29 mi (6,845.01 km) |
| Des Moines to Moura | 4,374.35 mi (7,039.83 km) |
| Des Moines to Murtosa | 4,224.52 mi (6,798.71 km) |
| Des Moines to Nazare | 4,246.42 mi (6,833.96 km) |
| Des Moines to Nelas | 4,267.30 mi (6,867.56 km) |
| Des Moines to Obidos | 4,251.18 mi (6,841.61 km) |
| Des Moines to Odemira | 4,341.16 mi (6,986.43 km) |
| Des Moines to Odivelas | 4,271.11 mi (6,873.69 km) |
| Des Moines to Oeiras | 4,268.83 mi (6,870.01 km) |
| Des Moines to Olhao | 4,398.71 mi (7,079.04 km) |
| Des Moines to Oliveira de Azemeis | 4,227.70 mi (6,803.82 km) |
