| Portland to Magstadt | 5,300.62 mi (8,530.53 km) |
| Portland to Mainaschaff | 5,231.24 mi (8,418.87 km) |
| Portland to Mainburg | 5,373.52 mi (8,647.84 km) |
| Portland to Maintal | 5,215.56 mi (8,393.63 km) |
| Portland to Mainz | 5,211.54 mi (8,387.16 km) |
| Portland to Maisach | 5,387.03 mi (8,669.59 km) |
| Portland to Maisenhausen | 5,227.07 mi (8,412.16 km) |
| Portland to Malente | 5,020.86 mi (8,080.30 km) |
| Portland to Malsch | 5,277.04 mi (8,492.57 km) |
| Portland to Manching | 5,362.75 mi (8,630.52 km) |
| Portland to Mannheim | 5,245.09 mi (8,441.16 km) |
| Portland to Mansfeld | 5,191.76 mi (8,355.32 km) |
| Portland to Marbach am Neckar | 5,296.44 mi (8,523.80 km) |
| Portland to Marburg | 5,175.77 mi (8,329.60 km) |
| Portland to Marienberg | 5,286.41 mi (8,507.65 km) |
