| Pittsburgh to Manerbio | 4,323.61 mi (6,958.17 km) |
| Pittsburgh to Manfredonia | 4,707.20 mi (7,575.51 km) |
| Pittsburgh to Maniago | 4,400.93 mi (7,082.62 km) |
| Pittsburgh to Mantova | 4,358.50 mi (7,014.33 km) |
| Pittsburgh to Maranello | 4,384.19 mi (7,055.67 km) |
| Pittsburgh to Marano di Napoli | 4,662.58 mi (7,503.69 km) |
| Pittsburgh to Marano Vicentino | 4,365.46 mi (7,025.53 km) |
| Pittsburgh to Marcianise | 4,662.33 mi (7,503.29 km) |
| Pittsburgh to Marcon | 4,406.34 mi (7,091.32 km) |
| Pittsburgh to Mareno di Piave | 4,398.00 mi (7,077.90 km) |
| Pittsburgh to Margherita di Savoia | 4,727.72 mi (7,608.52 km) |
| Pittsburgh to Mariano Comense | 4,272.31 mi (6,875.62 km) |
| Pittsburgh to Marigliano | 4,672.70 mi (7,519.98 km) |
| Pittsburgh to Marino | 4,563.84 mi (7,344.79 km) |
| Pittsburgh to Marostica | 4,372.94 mi (7,037.56 km) |
