| Thame to Mangualde | 834.94 mi (1,343.71 km) |
| Thame to Marco de Canavezes | 805.15 mi (1,295.77 km) |
| Thame to Marinha Grande | 912.40 mi (1,468.37 km) |
| Thame to Massama | 982.92 mi (1,581.85 km) |
| Thame to Matosinhos | 816.45 mi (1,313.95 km) |
| Thame to Mealhada | 862.26 mi (1,387.67 km) |
| Thame to Melgaco | 748.47 mi (1,204.55 km) |
| Thame to Melres | 817.61 mi (1,315.82 km) |
| Thame to Mira | 864.72 mi (1,391.63 km) |
| Thame to Miranda do Corvo | 878.21 mi (1,413.34 km) |
| Thame to Mirandela | 767.36 mi (1,234.94 km) |
| Thame to Mogadouro | 769.20 mi (1,237.90 km) |
| Thame to Moimenta da Beira | 807.94 mi (1,300.26 km) |
| Thame to Moita | 984.19 mi (1,583.90 km) |
| Thame to Moncao | 755.81 mi (1,216.36 km) |
