| Omaha to Mangualde | 4,387.23 mi (7,060.56 km) |
| Omaha to Marco de Canavezes | 4,348.52 mi (6,998.27 km) |
| Omaha to Marinha Grande | 4,367.22 mi (7,028.36 km) |
| Omaha to Massama | 4,389.14 mi (7,063.64 km) |
| Omaha to Matosinhos | 4,324.36 mi (6,959.39 km) |
| Omaha to Mealhada | 4,365.07 mi (7,024.90 km) |
| Omaha to Melgaco | 4,309.01 mi (6,934.68 km) |
| Omaha to Melres | 4,341.86 mi (6,987.55 km) |
| Omaha to Mira | 4,350.65 mi (7,001.69 km) |
| Omaha to Miranda do Corvo | 4,380.84 mi (7,050.28 km) |
| Omaha to Mirandela | 4,379.57 mi (7,048.24 km) |
| Omaha to Mogadouro | 4,405.50 mi (7,089.97 km) |
| Omaha to Moimenta da Beira | 4,379.63 mi (7,048.34 km) |
| Omaha to Moita | 4,406.33 mi (7,091.31 km) |
| Omaha to Moncao | 4,301.32 mi (6,922.31 km) |
