| Pittsburgh to Mancha Real | 3,963.73 mi (6,379.01 km) |
| Pittsburgh to Manilva | 3,931.05 mi (6,326.41 km) |
| Pittsburgh to Manises | 4,057.13 mi (6,529.32 km) |
| Pittsburgh to Manlleu | 4,098.79 mi (6,596.37 km) |
| Pittsburgh to Manresa | 4,087.36 mi (6,577.97 km) |
| Pittsburgh to Manzanares | 3,935.56 mi (6,333.67 km) |
| Pittsburgh to Manzanares el Real | 3,857.61 mi (6,208.22 km) |
| Pittsburgh to Maracena | 3,982.21 mi (6,408.74 km) |
| Pittsburgh to Marbella | 3,944.47 mi (6,348.00 km) |
| Pittsburgh to Marchena | 3,891.65 mi (6,263.01 km) |
| Pittsburgh to Marin | 3,582.29 mi (5,765.13 km) |
| Pittsburgh to Marratxi | 4,200.21 mi (6,759.59 km) |
| Pittsburgh to Martorell | 4,100.32 mi (6,598.83 km) |
| Pittsburgh to Martos | 3,949.03 mi (6,355.35 km) |
| Pittsburgh to Masamagrell | 4,059.83 mi (6,533.66 km) |
