| Campbellsville to Mangualde | 4,032.61 mi (6,489.85 km) |
| Campbellsville to Marco de Canavezes | 3,997.79 mi (6,433.82 km) |
| Campbellsville to Marinha Grande | 4,000.36 mi (6,437.96 km) |
| Campbellsville to Massama | 4,012.06 mi (6,456.78 km) |
| Campbellsville to Matosinhos | 3,971.58 mi (6,391.64 km) |
| Campbellsville to Mealhada | 4,005.81 mi (6,446.73 km) |
| Campbellsville to Melgaco | 3,966.63 mi (6,383.68 km) |
| Campbellsville to Melres | 3,989.11 mi (6,419.86 km) |
| Campbellsville to Mira | 3,990.79 mi (6,422.55 km) |
| Campbellsville to Miranda do Corvo | 4,019.43 mi (6,468.66 km) |
| Campbellsville to Mirandela | 4,035.29 mi (6,494.18 km) |
| Campbellsville to Mogadouro | 4,061.58 mi (6,536.48 km) |
| Campbellsville to Moimenta da Beira | 4,029.03 mi (6,484.10 km) |
| Campbellsville to Moita | 4,029.42 mi (6,484.73 km) |
| Campbellsville to Moncao | 3,957.75 mi (6,369.38 km) |
