| Slough to Melzo | 617.16 mi (993.22 km) |
| Slough to Mendicino | 1,168.92 mi (1,881.20 km) |
| Slough to Menfi | 1,165.46 mi (1,875.63 km) |
| Slough to Mentana | 904.32 mi (1,455.37 km) |
| Slough to Merano | 626.83 mi (1,008.79 km) |
| Slough to Merate | 607.88 mi (978.29 km) |
| Slough to Mercato San Severino | 1,039.71 mi (1,673.25 km) |
| Slough to Mercogliano | 1,031.47 mi (1,659.98 km) |
| Slough to Mesagne | 1,155.82 mi (1,860.11 km) |
| Slough to Messina | 1,207.59 mi (1,943.43 km) |
| Slough to Mestre | 717.89 mi (1,155.34 km) |
| Slough to Mestrino | 702.35 mi (1,130.32 km) |
| Slough to Milan | 611.21 mi (983.65 km) |
| Slough to Milazzo | 1,196.40 mi (1,925.41 km) |
| Slough to Minerbio | 731.02 mi (1,176.47 km) |
