| McKeesport to Mancha Real | 3,960.16 mi (6,373.26 km) |
| McKeesport to Manilva | 3,927.13 mi (6,320.10 km) |
| McKeesport to Manises | 4,054.05 mi (6,524.37 km) |
| McKeesport to Manlleu | 4,096.32 mi (6,592.40 km) |
| McKeesport to Manresa | 4,084.82 mi (6,573.88 km) |
| McKeesport to Manzanares | 3,932.20 mi (6,328.26 km) |
| McKeesport to Manzanares el Real | 3,854.51 mi (6,203.24 km) |
| McKeesport to Maracena | 3,978.53 mi (6,402.83 km) |
| McKeesport to Marbella | 3,940.59 mi (6,341.77 km) |
| McKeesport to Marchena | 3,887.88 mi (6,256.93 km) |
| McKeesport to Marin | 3,579.19 mi (5,760.15 km) |
| McKeesport to Marratxi | 4,197.39 mi (6,755.05 km) |
| McKeesport to Martorell | 4,097.75 mi (6,594.69 km) |
| McKeesport to Martos | 3,945.42 mi (6,349.54 km) |
| McKeesport to Masamagrell | 4,056.77 mi (6,528.75 km) |
