| Ollerton to Mangualde | 925.63 mi (1,489.66 km) |
| Ollerton to Marco de Canavezes | 894.14 mi (1,438.99 km) |
| Ollerton to Marinha Grande | 1,001.22 mi (1,611.31 km) |
| Ollerton to Massama | 1,072.05 mi (1,725.30 km) |
| Ollerton to Matosinhos | 903.95 mi (1,454.77 km) |
| Ollerton to Mealhada | 951.51 mi (1,531.30 km) |
| Ollerton to Melgaco | 835.72 mi (1,344.97 km) |
| Ollerton to Melres | 906.10 mi (1,458.23 km) |
| Ollerton to Mira | 953.18 mi (1,534.00 km) |
| Ollerton to Miranda do Corvo | 968.08 mi (1,557.97 km) |
| Ollerton to Mirandela | 858.49 mi (1,381.60 km) |
| Ollerton to Mogadouro | 861.63 mi (1,386.66 km) |
| Ollerton to Moimenta da Beira | 898.57 mi (1,446.11 km) |
| Ollerton to Moita | 1,074.10 mi (1,728.59 km) |
| Ollerton to Moncao | 842.50 mi (1,355.87 km) |
