| Williamsport to Melzo | 4,132.86 mi (6,651.19 km) |
| Williamsport to Mendicino | 4,656.51 mi (7,493.93 km) |
| Williamsport to Menfi | 4,579.67 mi (7,370.27 km) |
| Williamsport to Mentana | 4,395.84 mi (7,074.42 km) |
| Williamsport to Merano | 4,164.96 mi (6,702.86 km) |
| Williamsport to Merate | 4,126.71 mi (6,641.29 km) |
| Williamsport to Mercato San Severino | 4,534.38 mi (7,297.38 km) |
| Williamsport to Mercogliano | 4,527.89 mi (7,286.94 km) |
| Williamsport to Mesagne | 4,672.97 mi (7,520.42 km) |
| Williamsport to Messina | 4,671.49 mi (7,518.04 km) |
| Williamsport to Mestre | 4,250.96 mi (6,841.25 km) |
| Williamsport to Mestrino | 4,232.84 mi (6,812.10 km) |
| Williamsport to Milan | 4,124.45 mi (6,637.66 km) |
| Williamsport to Milazzo | 4,656.55 mi (7,493.99 km) |
| Williamsport to Minerbio | 4,250.21 mi (6,840.06 km) |
