| Portimao to Mitcham | 1,067.65 mi (1,718.22 km) |
| Portimao to Mold | 1,137.57 mi (1,830.75 km) |
| Portimao to Molesey | 1,063.73 mi (1,711.90 km) |
| Portimao to Monkseaton | 1,281.27 mi (2,062.00 km) |
| Portimao to Monmouth | 1,052.76 mi (1,694.26 km) |
| Portimao to Montrose | 1,380.95 mi (2,222.42 km) |
| Portimao to Morden | 1,066.88 mi (1,716.98 km) |
| Portimao to Morecambe | 1,200.86 mi (1,932.60 km) |
| Portimao to Moreton | 1,153.48 mi (1,856.34 km) |
| Portimao to Morley | 1,194.64 mi (1,922.59 km) |
| Portimao to Morpeth | 1,286.69 mi (2,070.72 km) |
| Portimao to Morriston | 1,028.60 mi (1,655.38 km) |
| Portimao to Mosbrough | 1,170.29 mi (1,883.39 km) |
| Portimao to Mossley | 1,173.61 mi (1,888.75 km) |
| Portimao to Moston | 1,171.84 mi (1,885.89 km) |
