| Olkusz to Marco de Canavezes | 1,465.66 mi (2,358.75 km) |
| Olkusz to Marinha Grande | 1,557.24 mi (2,506.13 km) |
| Olkusz to Massama | 1,613.99 mi (2,597.47 km) |
| Olkusz to Matosinhos | 1,489.19 mi (2,396.61 km) |
| Olkusz to Mealhada | 1,510.56 mi (2,431.01 km) |
| Olkusz to Melgaco | 1,434.84 mi (2,309.15 km) |
| Olkusz to Melres | 1,480.94 mi (2,383.35 km) |
| Olkusz to Mira | 1,520.55 mi (2,447.10 km) |
| Olkusz to Miranda do Corvo | 1,517.29 mi (2,441.85 km) |
| Olkusz to Mirandela | 1,412.48 mi (2,273.16 km) |
| Olkusz to Mogadouro | 1,398.71 mi (2,251.00 km) |
| Olkusz to Moimenta da Beira | 1,450.90 mi (2,335.00 km) |
| Olkusz to Moita | 1,606.46 mi (2,585.35 km) |
| Olkusz to Moncao | 1,445.66 mi (2,326.57 km) |
| Olkusz to Montalegre | 1,425.49 mi (2,294.11 km) |
