| South Portland to Myslenice | 4,028.30 mi (6,482.93 km) |
| South Portland to Mysliborz | 3,732.82 mi (6,007.39 km) |
| South Portland to Myslowice | 3,983.44 mi (6,410.73 km) |
| South Portland to Myszkow | 3,977.90 mi (6,401.82 km) |
| South Portland to Naklo nad Notecia | 3,826.41 mi (6,158.01 km) |
| South Portland to Namyslow | 3,900.19 mi (6,276.75 km) |
| South Portland to Nidzica | 3,921.18 mi (6,310.52 km) |
| South Portland to Niepolomice | 4,031.59 mi (6,488.22 km) |
| South Portland to Nisko | 4,085.54 mi (6,575.05 km) |
| South Portland to Nowa Deba | 4,074.94 mi (6,557.99 km) |
| South Portland to Nowa Ruda | 3,871.07 mi (6,229.89 km) |
| South Portland to Nowa Sol | 3,800.86 mi (6,116.90 km) |
| South Portland to Nowe Miasto Lubawskie | 3,888.92 mi (6,258.62 km) |
| South Portland to Nowogard | 3,719.17 mi (5,985.43 km) |
| South Portland to Nowy Dwor Gdanski | 3,845.52 mi (6,188.77 km) |
