| Pittsburgh to Montevarchi | 4,450.67 mi (7,162.66 km) |
| Pittsburgh to Monticello Conte Otto | 4,375.25 mi (7,041.29 km) |
| Pittsburgh to Montichiari | 4,332.59 mi (6,972.63 km) |
| Pittsburgh to Montignoso | 4,373.43 mi (7,038.36 km) |
| Pittsburgh to Montopoli in Val d'Arno | 4,410.88 mi (7,098.62 km) |
| Pittsburgh to Monza | 4,280.14 mi (6,888.22 km) |
| Pittsburgh to Morbegno | 4,273.11 mi (6,876.90 km) |
| Pittsburgh to Mori | 4,341.55 mi (6,987.05 km) |
| Pittsburgh to Morlupo | 4,542.50 mi (7,310.45 km) |
| Pittsburgh to Morrovalle | 4,543.35 mi (7,311.82 km) |
| Pittsburgh to Mortara | 4,269.88 mi (6,871.71 km) |
| Pittsburgh to Mosciano Sant'Angelo | 4,577.71 mi (7,367.11 km) |
| Pittsburgh to Motta di Livenza | 4,410.72 mi (7,098.37 km) |
| Pittsburgh to Motta Sant'Anastasia | 4,833.06 mi (7,778.06 km) |
| Pittsburgh to Mottola | 4,794.73 mi (7,716.37 km) |
