| McKeesport to Miranda de Ebro | 3,837.80 mi (6,176.34 km) |
| McKeesport to Mislata | 4,055.94 mi (6,527.40 km) |
| McKeesport to Moana | 3,579.87 mi (5,761.24 km) |
| McKeesport to Moguer | 3,820.62 mi (6,148.70 km) |
| McKeesport to Molina de Segura | 4,065.84 mi (6,543.34 km) |
| McKeesport to Molins de Rey | 4,103.63 mi (6,604.15 km) |
| McKeesport to Mollerusa | 4,045.53 mi (6,510.66 km) |
| McKeesport to Mollet | 4,108.43 mi (6,611.87 km) |
| McKeesport to Moncada | 4,109.02 mi (6,612.83 km) |
| McKeesport to Moncada | 4,054.53 mi (6,525.14 km) |
| McKeesport to Monforte de Lemos | 3,631.08 mi (5,843.66 km) |
| McKeesport to Monforte del Cid | 4,077.80 mi (6,562.59 km) |
| McKeesport to Mongat | 4,113.82 mi (6,620.55 km) |
| McKeesport to Monovar | 4,070.76 mi (6,551.26 km) |
| McKeesport to Monserrat | 4,051.06 mi (6,519.56 km) |
