| South Portland to Mels | 3,704.59 mi (5,961.96 km) |
| South Portland to Mendrisio | 3,724.86 mi (5,994.58 km) |
| South Portland to Meyrin | 3,589.65 mi (5,776.99 km) |
| South Portland to Mohlin | 3,623.07 mi (5,830.76 km) |
| South Portland to Monthey | 3,626.25 mi (5,835.89 km) |
| South Portland to Montreux | 3,619.08 mi (5,824.34 km) |
| South Portland to Morges | 3,598.78 mi (5,791.68 km) |
| South Portland to Munchenstein | 3,614.80 mi (5,817.46 km) |
| South Portland to Muri | 3,627.36 mi (5,837.67 km) |
| South Portland to Muttenz | 3,616.19 mi (5,819.70 km) |
| South Portland to Naters | 3,667.96 mi (5,903.01 km) |
| South Portland to Neuchatel | 3,602.13 mi (5,797.06 km) |
| South Portland to Neuenhof | 3,646.67 mi (5,868.76 km) |
| South Portland to Neuhausen am Rheinfall | 3,651.21 mi (5,876.05 km) |
| South Portland to Niederhasli | 3,652.10 mi (5,877.48 km) |
