| Portland to Mengen | 5,349.99 mi (8,609.98 km) |
| Portland to Meppen | 5,032.39 mi (8,098.85 km) |
| Portland to Merchweiler | 5,217.67 mi (8,397.03 km) |
| Portland to Mering | 5,377.60 mi (8,654.42 km) |
| Portland to Merseburg | 5,217.92 mi (8,397.43 km) |
| Portland to Merzenich | 5,120.54 mi (8,240.72 km) |
| Portland to Merzig | 5,201.39 mi (8,370.84 km) |
| Portland to Meschede | 5,132.97 mi (8,260.71 km) |
| Portland to Messkirch | 5,347.94 mi (8,606.68 km) |
| Portland to Messstetten | 5,333.28 mi (8,583.08 km) |
| Portland to Mettingen | 5,065.45 mi (8,152.05 km) |
| Portland to Mettlach | 5,198.52 mi (8,366.21 km) |
| Portland to Mettmann | 5,107.11 mi (8,219.09 km) |
| Portland to Metzingen | 5,320.46 mi (8,562.45 km) |
| Portland to Meuselwitz | 5,242.79 mi (8,437.46 km) |
