| Kingsport to Mangualde | 3,924.97 mi (6,316.63 km) |
| Kingsport to Marco de Canavezes | 3,891.24 mi (6,262.35 km) |
| Kingsport to Marinha Grande | 3,889.80 mi (6,260.03 km) |
| Kingsport to Massama | 3,898.94 mi (6,274.73 km) |
| Kingsport to Matosinhos | 3,864.62 mi (6,219.50 km) |
| Kingsport to Mealhada | 3,897.12 mi (6,271.81 km) |
| Kingsport to Melgaco | 3,862.28 mi (6,215.74 km) |
| Kingsport to Melres | 3,882.10 mi (6,247.63 km) |
| Kingsport to Mira | 3,882.00 mi (6,247.47 km) |
| Kingsport to Miranda do Corvo | 3,910.16 mi (6,292.80 km) |
| Kingsport to Mirandela | 3,930.22 mi (6,325.07 km) |
| Kingsport to Mogadouro | 3,956.49 mi (6,367.36 km) |
| Kingsport to Moimenta da Beira | 3,922.40 mi (6,312.50 km) |
| Kingsport to Moita | 3,916.28 mi (6,302.65 km) |
| Kingsport to Moncao | 3,853.13 mi (6,201.02 km) |
